This document presents the design and optimization of a multi-band rectangular-triangular slotted microstrip patch antenna for wireless communication applications. The antenna consists of a rectangular patch joined to an isosceles triangular patch, with both patches containing rectangular and triangular slots respectively. Optimization of the feeding point location allowed the antenna to operate at multiple bands between 2.67-4.75 GHz with gains over 6 dB. Analysis of the return losses, radiation patterns, surface currents and electric fields demonstrated good multi-band performance, making the antenna suitable for applications such as WLAN, WiMax and radar systems.
Design and Analysis of Triple-Band Multi Slotted Microstrip Patch AntennaIOSR Journals
In this paper, a multi slotted microstrip patch antenna design has been proposed. The characteristics
of the antenna are obtained in terms of return loss, gain and bandwidth. It is observed that the new proposed
configuration can operate in three different frequency bands with a good amount of bandwidth i.e. bandwidth of
21.12% at 1.1GHz frequency band, bandwidth of 11.65% at 2.11 GHz and bandwidth of 13.05% at 2.76GHz
frequency band . The resonating behavior in different frequency bands makes this antenna structure suitable for
different types of applications with an antenna gain of 6.163dBi and antenna efficiency of 86.82%.The substrate
material with relative permittivity of 4.2 and loss tangent of 0.0013 is used in this proposed antenna. The
designing and simulation of the antenna structure is done over IE3D simulation software version 15.02.
TRI-BAND MICROSTRIP PATCH ANTENNA FOR S-BAND NANO SATELLITE APPLICATION USING...ijsrd.com
It's the generation of tiny satellites which basically needs all its components to be miniature. The product proposed here is one such component, a tri band micro strip patch antenna operating at 2.6GHz, 3.6GHz S-band frequencies and 5.8 GHz. This real-time project work deals with a rectangular patch antenna operating at different frequencies working for various applications. The proposed S-Band Patch antenna is being designed and simulated using HFSS software. Obtaining optimum bandwidth efficiency by choosing suitable size without affecting any other parameters of the antenna is the challenge taken over in this project. The low profile, less weight patch antenna has antenna element of physical dimension 40x40x2.6mm .The substrate material being used is Alumina with dielectric constant 9.6. This antenna is designed to be used for TTC and payload downlink purposes. The designed patch array antenna meets all the parametric needs for a Polar orbiting satellite at Low Earth Orbit (LEO) region.
High Gain Rectangular Microstrip Patch Antenna Employing FR4 Substrate for Wi...IJERA Editor
This paper presents an antenna for WiMAX, LMDS and MMDS system applications. FR4 material has been
used as substrate having dielectric constant of 4.4. The Patch, Ground and feedline are made of copper. The
proposed antenna is rectangular in shape which resonate at 3.42 GHz with a bandwidth of 45MHz (3.40GHz-
3.44GHz) and corresponding return loss of -32.39 dB. The performance of the antenna has been analyzed in
terms of return loss (dB), gain (dB), directivity (dBi), VSWR and impedance (ohms). The proposed antenna has
directivity and gain of 7.2 dBi and 7.28 dB respectively
Design Study of a Miniaturized Multi-layered Antenna-in-package for 2.4 GHZ ...IJECEIAES
This paper proposes a novel miniaturization technique to enhance the radiation properties of small multi-layer patch antenna used in packaged circuits. The multilayered antenna design is composed of three layers with different shapes. An enhancement on the radiation properties has been obtained by optimizing the geometry of the radiated element and the parasitic conductor of the middle layer. The whole design has been implemented on the FR4 substrate with dielectric constant of 4.4, thickness of 1.6 mm and Copper thickness of 5 m. The first layer is a driven element while second and the third layer are parasitic patch elements. The optimized multilayer antenna has a very small size of . Considering the small size of the antenna, a detailed study of the parameter affecting the radiation has been considered to force the antenna to operate at 2.4 GHz band. Miniaturization techniques based on the current distribution have been also taken into account to shift down the resonant frequency and reduces more and more the antenna size at the designed operating frequency. The miniaturized antenna maintains performant radiation characteristics in terms of reflexion coefficient, bandwidth and directivity. All developed antennas are simulated using the commercial Electromagnetic CST Microwave Studio software. Achieved results demonstrate a good performance with low cost and compact size
Circular shape, Dual band proximity feed UWB AntennaAmitesh Raikwar
This paper presents novel proximity feed, microstrip antenna with dual band operative frequency and having ultra wide bandwidth with center
frequency at 3GHz. This Circular shaped microstrip antenna offers a dual band. This paper suggests an alternative approach in enhancing the band
width of microstrip antenna for the wireless application operating at a frequency of 3 GHz. A bandwidth enhancement of more than 21% was achieved.
The measured results have been compared with the simulated results using software IE3D version-14.0.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Design and Analysis of Triple-Band Multi Slotted Microstrip Patch AntennaIOSR Journals
In this paper, a multi slotted microstrip patch antenna design has been proposed. The characteristics
of the antenna are obtained in terms of return loss, gain and bandwidth. It is observed that the new proposed
configuration can operate in three different frequency bands with a good amount of bandwidth i.e. bandwidth of
21.12% at 1.1GHz frequency band, bandwidth of 11.65% at 2.11 GHz and bandwidth of 13.05% at 2.76GHz
frequency band . The resonating behavior in different frequency bands makes this antenna structure suitable for
different types of applications with an antenna gain of 6.163dBi and antenna efficiency of 86.82%.The substrate
material with relative permittivity of 4.2 and loss tangent of 0.0013 is used in this proposed antenna. The
designing and simulation of the antenna structure is done over IE3D simulation software version 15.02.
TRI-BAND MICROSTRIP PATCH ANTENNA FOR S-BAND NANO SATELLITE APPLICATION USING...ijsrd.com
It's the generation of tiny satellites which basically needs all its components to be miniature. The product proposed here is one such component, a tri band micro strip patch antenna operating at 2.6GHz, 3.6GHz S-band frequencies and 5.8 GHz. This real-time project work deals with a rectangular patch antenna operating at different frequencies working for various applications. The proposed S-Band Patch antenna is being designed and simulated using HFSS software. Obtaining optimum bandwidth efficiency by choosing suitable size without affecting any other parameters of the antenna is the challenge taken over in this project. The low profile, less weight patch antenna has antenna element of physical dimension 40x40x2.6mm .The substrate material being used is Alumina with dielectric constant 9.6. This antenna is designed to be used for TTC and payload downlink purposes. The designed patch array antenna meets all the parametric needs for a Polar orbiting satellite at Low Earth Orbit (LEO) region.
High Gain Rectangular Microstrip Patch Antenna Employing FR4 Substrate for Wi...IJERA Editor
This paper presents an antenna for WiMAX, LMDS and MMDS system applications. FR4 material has been
used as substrate having dielectric constant of 4.4. The Patch, Ground and feedline are made of copper. The
proposed antenna is rectangular in shape which resonate at 3.42 GHz with a bandwidth of 45MHz (3.40GHz-
3.44GHz) and corresponding return loss of -32.39 dB. The performance of the antenna has been analyzed in
terms of return loss (dB), gain (dB), directivity (dBi), VSWR and impedance (ohms). The proposed antenna has
directivity and gain of 7.2 dBi and 7.28 dB respectively
Design Study of a Miniaturized Multi-layered Antenna-in-package for 2.4 GHZ ...IJECEIAES
This paper proposes a novel miniaturization technique to enhance the radiation properties of small multi-layer patch antenna used in packaged circuits. The multilayered antenna design is composed of three layers with different shapes. An enhancement on the radiation properties has been obtained by optimizing the geometry of the radiated element and the parasitic conductor of the middle layer. The whole design has been implemented on the FR4 substrate with dielectric constant of 4.4, thickness of 1.6 mm and Copper thickness of 5 m. The first layer is a driven element while second and the third layer are parasitic patch elements. The optimized multilayer antenna has a very small size of . Considering the small size of the antenna, a detailed study of the parameter affecting the radiation has been considered to force the antenna to operate at 2.4 GHz band. Miniaturization techniques based on the current distribution have been also taken into account to shift down the resonant frequency and reduces more and more the antenna size at the designed operating frequency. The miniaturized antenna maintains performant radiation characteristics in terms of reflexion coefficient, bandwidth and directivity. All developed antennas are simulated using the commercial Electromagnetic CST Microwave Studio software. Achieved results demonstrate a good performance with low cost and compact size
Circular shape, Dual band proximity feed UWB AntennaAmitesh Raikwar
This paper presents novel proximity feed, microstrip antenna with dual band operative frequency and having ultra wide bandwidth with center
frequency at 3GHz. This Circular shaped microstrip antenna offers a dual band. This paper suggests an alternative approach in enhancing the band
width of microstrip antenna for the wireless application operating at a frequency of 3 GHz. A bandwidth enhancement of more than 21% was achieved.
The measured results have been compared with the simulated results using software IE3D version-14.0.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsIJERA Editor
The hasty growth of wireless technologies has drawn new demands for integrated components including antennas and antenna on chip is a new mantra in the area of antenna research. Various techniques have been suggested by researchers for the miniaturization of microstrip patch antennas with multiband characteristics. Numerous antennas for multiband operation have been studied and designed for communication and radar systems. One of the solutions for the multiband characteristics is the fractal antenna. The Fractal antennas are based on the concept of fractal geometries. They can be designed in a variety of shapes in order to obtain enhanced gain and bandwidth, dual band and circular polarization to even ultra-wideband operation. In this paper, the fractal antenna has been designed using the Arlon substrate with relative permittivity of 1.3 and a substrate of Sierpinski gasket shaped placed on it. Feed used is the line feed. The designed antenna is a low profile, small size and multiband antenna since it can be operated at different frequencies within the frequency range of (1.75 – 2.65) and (5.7 – 7.65) GHz. It includes the frequencies used for wireless WLAN application and used to receive and transmit a high-frequency signal.
Circular Shape , Dual Band proximity feed UWB AntennaAmitesh Raikwar
Abstract:- This paper presents novel proximity feed, microstrip antenna with dual band operative frequency and having ultra wide bandwidth with center frequency at 3GHz. This Circular shaped microstrip antenna offers a dual band. This paper suggests an alternative approach in enhancing the band width of microstrip antenna for the wireless application operating at a frequency of 3 GHz. A bandwidth enhancement of more than 21% was achieved. The measured results have been compared with the simulated results using software IE3D version-14.0.
Conical Shaped Monopole Antenna for Multiband Wireless Applicationsiosrjce
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Analysis of element shape in the design for multi band applicationseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...IJERA Editor
This paper presents simulation and analysis of a Stacked Electromagnetic Gap Coupled Rhombus Shaped
Microstrip Patch Antenna (SEGCRSMPA) to increase the bandwidth. The aim of this paper is to improve the
bandwidth of Electromagnetic Gap Coupled Rhombus Shaped Microstrip Patch Antenna (EGCRSMPA). To
improve the bandwidth, stacking principle has been used. In this paper an assembly of one central rectangular
patch with four triangular patches forming rhombus shaped microstrip patch antenna is discussed. IE3D
simulation software is used for simulation. The performance of the proposed microstrip patch antenna is
compared with that of a conventional rectangular microstrip antenna and EGCRSMPA having same dimensions.
The proposed designed microstrip patch antenna offers much improved impedance bandwidth 47.62%.
A PROXIMITY FEED DUAL BAND CIRCULAR SHAPED ANTENNA WITH SEMICIRCULAR GROUND P...Amitesh Raikwar
In this work, we present a Circular Shaped proximity feed
Microstrip Patch Antenna. The antenna is comprised of circular
shaped radiation patch and this radiating patch is faded
by proximity coupling. The ground plane of the antenna has
Semicircular pattern to improve the coupling level of the
patch. The simulated result shows it provides the return loss
less than -10 dB for two frequencies 1.27 GHz and 1.43 GHz
which could be a useful frequencies for wireless communication
system. The simulation work is carried out on IE3D
software, a product of Zeland Software Company.
expanding the bandwidth of rectangular microstrip antenna by inserting a slotINFOGAIN PUBLICATION
In this work we were able to improve the reflection coefficient S11 and bandwidth BW of a rectangular microstrip antenna fed by a coaxial cable firstly by adjusting a the feed point and secondly by inserting a rectangular slot in the radiating element The results obtained using the HFSS software, have been compared by those published. These results are very satisfying.
In this paper a compact, flexible, Multiband antenna is designed. It is having flexible Substrate of photographic paper which makes the antenna conformal. The antenna with two U slots cut in radiating patch is offset fed by microstrip lines gives the multiple bands of WLAN/WIMAX Application and two parasitic Elements improves the bandwidth of a typical microstrip antenna. The Measured results shows that the antenna resonates between Frequency band 2.10-2.95 GHz, 3.35-3.54 GHz and 5.04-6.0Hz.which are used for application such as Bluetooth, Wi-Fi, Zigbee, ISM 2.4GHz,WLAN WiMAX, and WLAN 5.2GHz.
International Journal of Computational Engineering Research (IJCER) ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Comparison of Windows and Linux Operating Systems in Advanced FeaturesIJERA Editor
Comparison between the Microsoft Windows and Linux computer operating systems is a long-running
discussion topic within the personal computer industry .This technical paper is mainly going to focus on the
differences between windows and linux in all fields. Both Windows and Linux Operating systems have their
own advantages and differ in functionalities and user friendliness. Linux and Microsoft Windows differ in
philosophy, cost, versatility and stability, with each seeking to improve in their perceived weaker areas. This
paper is mainly going to focus on the advanced features that are uniquely present in one operating system and
not in other one.
IRDO: Iris Recognition by fusion of DTCWT and OLBPIJERA Editor
Iris Biometric is a physiological trait of human beings. In this paper, we propose Iris an Recognition using
Fusion of Dual Tree Complex Wavelet Transform (DTCWT) and Over Lapping Local Binary Pattern (OLBP)
Features. An eye is preprocessed to extract the iris part and obtain the Region of Interest (ROI) area from an iris.
The complex wavelet features are extracted for region from the Iris DTCWT. OLBP is further applied on ROI to
generate features of magnitude coefficients. The resultant features are generated by fusing DTCWT and OLBP
using arithmetic addition. The Euclidean Distance (ED) is used to compare test iris with database iris features to
identify a person. It is observed that the values of Total Success Rate (TSR) and Equal Error Rate (EER) are
better in the case of proposed IRDO compared to the state-of-the art techniques.
IN 7 STAPPEN NAAR EEN PRODUCT DAT GEKOCHT WORDT?Misha de Sterke
Door Misha de Sterke
van De Sterke Consultancy
Volg me via @mishadesterke
Meer informatie? Ga naar www.mishadesterke.nl of mail naar desterkeconsultancy@gmail.com
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsIJERA Editor
The hasty growth of wireless technologies has drawn new demands for integrated components including antennas and antenna on chip is a new mantra in the area of antenna research. Various techniques have been suggested by researchers for the miniaturization of microstrip patch antennas with multiband characteristics. Numerous antennas for multiband operation have been studied and designed for communication and radar systems. One of the solutions for the multiband characteristics is the fractal antenna. The Fractal antennas are based on the concept of fractal geometries. They can be designed in a variety of shapes in order to obtain enhanced gain and bandwidth, dual band and circular polarization to even ultra-wideband operation. In this paper, the fractal antenna has been designed using the Arlon substrate with relative permittivity of 1.3 and a substrate of Sierpinski gasket shaped placed on it. Feed used is the line feed. The designed antenna is a low profile, small size and multiband antenna since it can be operated at different frequencies within the frequency range of (1.75 – 2.65) and (5.7 – 7.65) GHz. It includes the frequencies used for wireless WLAN application and used to receive and transmit a high-frequency signal.
Circular Shape , Dual Band proximity feed UWB AntennaAmitesh Raikwar
Abstract:- This paper presents novel proximity feed, microstrip antenna with dual band operative frequency and having ultra wide bandwidth with center frequency at 3GHz. This Circular shaped microstrip antenna offers a dual band. This paper suggests an alternative approach in enhancing the band width of microstrip antenna for the wireless application operating at a frequency of 3 GHz. A bandwidth enhancement of more than 21% was achieved. The measured results have been compared with the simulated results using software IE3D version-14.0.
Conical Shaped Monopole Antenna for Multiband Wireless Applicationsiosrjce
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Analysis of element shape in the design for multi band applicationseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
An Improved Bandwidth for Electromagnetic Gap Coupled Rhombus Shaped Microstr...IJERA Editor
This paper presents simulation and analysis of a Stacked Electromagnetic Gap Coupled Rhombus Shaped
Microstrip Patch Antenna (SEGCRSMPA) to increase the bandwidth. The aim of this paper is to improve the
bandwidth of Electromagnetic Gap Coupled Rhombus Shaped Microstrip Patch Antenna (EGCRSMPA). To
improve the bandwidth, stacking principle has been used. In this paper an assembly of one central rectangular
patch with four triangular patches forming rhombus shaped microstrip patch antenna is discussed. IE3D
simulation software is used for simulation. The performance of the proposed microstrip patch antenna is
compared with that of a conventional rectangular microstrip antenna and EGCRSMPA having same dimensions.
The proposed designed microstrip patch antenna offers much improved impedance bandwidth 47.62%.
A PROXIMITY FEED DUAL BAND CIRCULAR SHAPED ANTENNA WITH SEMICIRCULAR GROUND P...Amitesh Raikwar
In this work, we present a Circular Shaped proximity feed
Microstrip Patch Antenna. The antenna is comprised of circular
shaped radiation patch and this radiating patch is faded
by proximity coupling. The ground plane of the antenna has
Semicircular pattern to improve the coupling level of the
patch. The simulated result shows it provides the return loss
less than -10 dB for two frequencies 1.27 GHz and 1.43 GHz
which could be a useful frequencies for wireless communication
system. The simulation work is carried out on IE3D
software, a product of Zeland Software Company.
expanding the bandwidth of rectangular microstrip antenna by inserting a slotINFOGAIN PUBLICATION
In this work we were able to improve the reflection coefficient S11 and bandwidth BW of a rectangular microstrip antenna fed by a coaxial cable firstly by adjusting a the feed point and secondly by inserting a rectangular slot in the radiating element The results obtained using the HFSS software, have been compared by those published. These results are very satisfying.
In this paper a compact, flexible, Multiband antenna is designed. It is having flexible Substrate of photographic paper which makes the antenna conformal. The antenna with two U slots cut in radiating patch is offset fed by microstrip lines gives the multiple bands of WLAN/WIMAX Application and two parasitic Elements improves the bandwidth of a typical microstrip antenna. The Measured results shows that the antenna resonates between Frequency band 2.10-2.95 GHz, 3.35-3.54 GHz and 5.04-6.0Hz.which are used for application such as Bluetooth, Wi-Fi, Zigbee, ISM 2.4GHz,WLAN WiMAX, and WLAN 5.2GHz.
International Journal of Computational Engineering Research (IJCER) ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Comparison of Windows and Linux Operating Systems in Advanced FeaturesIJERA Editor
Comparison between the Microsoft Windows and Linux computer operating systems is a long-running
discussion topic within the personal computer industry .This technical paper is mainly going to focus on the
differences between windows and linux in all fields. Both Windows and Linux Operating systems have their
own advantages and differ in functionalities and user friendliness. Linux and Microsoft Windows differ in
philosophy, cost, versatility and stability, with each seeking to improve in their perceived weaker areas. This
paper is mainly going to focus on the advanced features that are uniquely present in one operating system and
not in other one.
IRDO: Iris Recognition by fusion of DTCWT and OLBPIJERA Editor
Iris Biometric is a physiological trait of human beings. In this paper, we propose Iris an Recognition using
Fusion of Dual Tree Complex Wavelet Transform (DTCWT) and Over Lapping Local Binary Pattern (OLBP)
Features. An eye is preprocessed to extract the iris part and obtain the Region of Interest (ROI) area from an iris.
The complex wavelet features are extracted for region from the Iris DTCWT. OLBP is further applied on ROI to
generate features of magnitude coefficients. The resultant features are generated by fusing DTCWT and OLBP
using arithmetic addition. The Euclidean Distance (ED) is used to compare test iris with database iris features to
identify a person. It is observed that the values of Total Success Rate (TSR) and Equal Error Rate (EER) are
better in the case of proposed IRDO compared to the state-of-the art techniques.
IN 7 STAPPEN NAAR EEN PRODUCT DAT GEKOCHT WORDT?Misha de Sterke
Door Misha de Sterke
van De Sterke Consultancy
Volg me via @mishadesterke
Meer informatie? Ga naar www.mishadesterke.nl of mail naar desterkeconsultancy@gmail.com
Content based Image Retrieval from Forensic Image DatabasesIJERA Editor
Due to the proliferation of video and image data in digital form, Content based Image Retrieval has become a prominent research topic. In forensic sciences, digital data have been widely used such as criminal images, fingerprints, scene images and so on. Therefore, the arrangement of such large image data becomes a big issue such as how to get an interested image fast. There is a great need for developing an efficient technique for finding the images. In order to find an image, image has to be represented with certain features. Color, texture and shape are three important visual features of an image. Searching for images using color, texture and shape features has attracted much attention. There are many content based image retrieval techniques in the literature. This paper gives the overview of different existing methods used for content based image retrieval and also suggests an efficient image retrieval method for digital image database of criminal photos, using dynamic dominant color, texture and shape features of an image which will give an effective retrieval result.
Investigative Compression Of Lossy Images By Enactment Of Lattice Vector Quan...IJERA Editor
In the digital era we live in, efficient representation of data generated by a discrete source and its reliable transmission are unquestionable need. In this work we have focused on source coding taking image as source. Lattice Vector Quantization (LVQ) can be used for source coding as well as for channel coding. (LVQ) with Generator Matrix (GM) and codebook is implemented. When implementation using codebook is done, two codebooks are constructed, one with 256 lattice points that are closest to (0,0,0,0) and another with 256 lattice points that are closest to (1,0,0,0). Energy for both the codes is calculated. When we compare the energy of both the codes we find that codes centered at a non lattice point is lower energy code.
Implementation of Line of Balance Method for Scheduling High-rise BuildingIJERA Editor
In linear construction projects like high rise buildings, roadways, pipelines where activities are repeated after a specific interval, it is very much important for project manager to monitor the project at each stage. Line of Balance method is therefore useful for the project like high rise building to monitor the progress of the work. This method is useful for calculating the total duration of the project, crew synchronization and also shows the process, status, timing and phasing of the project activities. The overall objective of this study is to identify the total duration required by the project for its completion and its comparison with the actual plan by using Line of Balance method, to crash some of the activities and find out the total duration of crashed activities and to calculate labours required for the crashed activities by drawing the graph of Histogram.Keywords- crashing, crew synchronization, buffer, Histogram, Rate of Production
Door Misha de Sterke
van De Sterke Consultancy
Volg me via @mishadesterke
Meer informatie? Ga naar www.mishadesterke.nl of mail naar desterkeconsultancy@gmail.com
Speed Control of Induction Motor using FOC MethodIJERA Editor
An increasing number of applications in high performing electrical drive systems use nowadays, squirrel-cage induction motors. This paper describes a simplified method for the speed control of a three phase AC drive using Proportional-Integral controller. The simulation results show that the step response of the model is very fast, steady and able to work in four quadrants, and robustness and high performance is achieved.
Design and Analysis of Triple-Band Multi Slotted Microstrip Patch AntennaIOSR Journals
Abstract: In this paper, a multi slotted microstrip patch antenna design has been proposed. The characteristics of the antenna are obtained in terms of return loss, gain and bandwidth. It is observed that the new proposed configuration can operate in three different frequency bands with a good amount of bandwidth i.e. bandwidth of 21.12% at 1.1GHz frequency band, bandwidth of 11.65% at 2.11 GHz and bandwidth of 13.05% at 2.76GHz frequency band . The resonating behavior in different frequency bands makes this antenna structure suitable for different types of applications with an antenna gain of 6.163dBi and antenna efficiency of 86.82%.The substrate material with relative permittivity of 4.2 and loss tangent of 0.0013 is used in this proposed antenna. The designing and simulation of the antenna structure is done over IE3D simulation software version 15.02. Keywords: Ground plane, Multi slotted, Patch Antenna, Triple band
Modified Sierpinski Gasket for Wi-Fi and WLAN ApplicationsIJERA Editor
The hasty growth of wireless technologies has drawn new demands for integrated components including antennas and antenna on chip is a new mantra in the area of antenna research. Various techniques have been suggested by researchers for the miniaturization of microstrip patch antennas with multiband characteristics. Numerous antennas for multiband operation have been studied and designed for communication and radar systems. One of the solutions for the multiband characteristics is the fractal antenna. The Fractal antennas are based on the concept of fractal geometries. They can be designed in a variety of shapes in order to obtain enhanced gain and bandwidth, dual band and circular polarization to even ultra-wideband operation. In this paper, the fractal antenna has been designed using the Arlon substrate with relative permittivity of 1.3 and a substrate of Sierpinski gasket shaped placed on it. Feed used is the line feed. The designed antenna is a low profile, small size and multiband antenna since it can be operated at different frequencies within the frequency range of (1.75 – 2.65) and (5.7 – 7.65) GHz. It includes the frequencies used for wireless WLAN application and used to receive and transmit a high-frequency signal.
Parametric Analysis of Single Element U Slot Microstrip AntennaIJSRD
In wireless communication system antennas are the most important element for creating communication link between source and destination. Microsrtip antennas are used for mobile and other satellite communication application because of their light weight, low power handling capacity and low profile. The modern mobile communication system requires high gain, wide bandwidth and minimal size antennas that are capable of providing better performance over a wide range of frequency spectrum. This requirement leads to the design of microsrtip patch array antenna. This paper proposes the parametric analysis of single element U slot MSA. Low dielectric constant substrates are generally preferred for maximum radiation. Thus it prefers FR4 as a dielectric substrate. Desired patch antenna design is simulated by using high frequency simulation software and patch antenna is designed as per requirement. Antenna dimensions such as Length (L), Width (W), and substrate dielectric constant and parameters like Return Loss, Gain, impedance and current distribution are calculated using CAD-FEKO. The antenna has been design to be operated in the range of 8-12GHz. Hence this antenna is highly suitable for X-band applications.
Design and Analysis of Microstrip Patch Antenna with Optimization for Wireles...ijsrd.com
In this paper, design of conventional Rectangular patch Microstrip antenna has been proposed and its performance is analyzed. The design parameters of antenna are selected to achieve compact dimensions as well as best possible characteristics such as high gain, increased bandwidth with minimum return loss. Hence improved design has been demonstrated over elementary one. These antennas have been designed at 2.4GHz which enables its usage in wireless communication domain such as Wireless Local Area Network (WLAN). The antenna design and performance are analyzed using Ansoft HFSS software. These antennas can be used for many wireless communication systems.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
REVIEW OF FRACTAL TECHNIQUES FOR DESIGNING MICROSTRIP PATCH ANTENNA FOR X BANDIJEEE
This paper on fractal techniques for designing microstrip antenna exhibits details of fractal geometries developed to get multiband behavior of patch resonator antenna. In this paper the review on various techniques of compactness by fractal geometry on microstrip patch antenna for X band used for satellite communication and radar application are presented.
Rectangular and circular antennas design for Bluetooth applicationsTELKOMNIKA JOURNAL
The most researched and examined aspect of the communication system is the wireless connection. Without learning how to operate and use different types of antennas, your knowledge is incomplete. Microstrip patch antenna research has advanced significantly in recent years. When compared to standard antennas, microstrip patch antennas provide additional advantages and opportunities. It is of low volume, light weight, low cost, low appearance, compact and easy to manufacture. This study investigates the differences between rectangular and circular patch antennas. For Bluetooth applications, the center frequency of 2.4 GHz was chosen as the optimal resonant frequency. On a flame retardant (FR-4) epoxy substrate, the antenna dielectric constant is 4.4. Above the ground the base rises 3.6 mm. For the simulation process, high frequency simulation software (HFSS 15) is used as the program design. Antennas 1×1, 1×2, and 1×4 are designed for both circular and rectangular antennas. A comparison was made for both types of antennas and voltage standing wave ratio (VSWR), return losses, gain, directivity and half power beam width (HPBW) were found, and the feature of the rectangular antenna was shown.
The Microstrip antenna has been commercially used in many applications, such as direct broadcast
satellite service, mobile satellite communications, global positioning system, medical hyperthermia usage,
etc. The patch antenna of the size reduction at a given operating frequency is obtained. Mobile personal
communication systems and wireless computer networks are most commonly used nowadays and they are
in need of antennas in different frequency bands. In regulate to without difficulty incorporate these
antennas into individual systems, a micro strip scrap transmitter have been preferred and intended for a
convinced divergence. There is also an analysis of radiation pattern, Gain of the antenna, Directivity of the
antenna, Electric Far Field. The simulations results are obtained by using electromagnetic simulation
software called feko software are presented and discussed.
Design of octagon shape microstrip patch antenna for multiband applicationvishant choudhary
In this Research paper .Three antenna is shows which is In a zero slot Microstrip patch antenna three resonant frequency bands occur, In single slot Microstrip patch antenna five resonant bands occurs and In five slots Microstrip antenna six resonant frequency bands occurs. These antennas can be used at various application such as GSM and WLAN-IEEE-802.11(a, b, g and n). Therefore the proposed antennas have satisfactory performance for use as a multiband communication antenna.
Review: Dual Band Microstrip Antennas for Wireless ApplicationsIJAAS Team
In this manuscript, a review of dual band microstrip antennas for wireless communication is presented. This review manuscript discusses regarding the geometric structures, different methods of analysis for antenna characteristics, and different types of wireless applications.
Design of a Rectangular Microstrip Patch Antenna Using Inset Feed TechniqueIOSR Journals
Abstract : Today in the world of communication systems the most widely researched area is of wireless technology and a study of communication systems is incomplete without an understanding of the operation of the antennas. In the recent years of development in communication systems a need for the development of lightweight, compact and cost-effective antennas that are capable of maintaining high performance over a wide spectrum of frequencies. This technological trend has focused much effort into the design of a Micro strip patch antenna. In this work, the simulation tool of IE3D is used to study the performance and gain of the rectangular Microstrip patch antenna. The design and simulation of patch antennas is widely used in mobile cellular phones today, and our emphasis in this work is on optimization of a 2.4 GHz rectangular Microstrip patch antenna. The return loss and the various gain plots have been studied along with the radiation patterns. Keywords: Gain, Inset feed, Patch antenna, Radiation pattern, Return Loss.
Design of a Rectangular Microstrip Patch Antenna Using Inset Feed Technique
L53026265
1. K.swetha et al. Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.62-65
www.ijera.com 62 | P a g e
Optimization of Multi-band Rectangular-Triangular Slotted
Antenna
1
K.swetha, 2
K.Satish Kumar, 2
B.Manoj Kumar reddy
1
Reasearch Scholar, Department of ECE, A. P, India
2
Project Students, Department of E.C.E, Vignan University, A. P, India
ABSTRACT
A multi-band microstrip patch antenna is developed and presented in this paper. The radiating elements in this
antenna are composed of rectangular and triangular slots. These slots are engraved in the rectangular and
triangular patch, joined together in one structure, and by single probe feed. The rectangular and triangular slots
make the antenna to operate at multiband with relatively high gain. Therefore, this antenna can be used for
wireless communication applications like WLAN, WiMax and radar system applications.
Key Words: Microstrip antennas, WiMax, WLAN.
I. INTRODUCTION
The design of an efficient wideband small size
antenna for recent wireless applications is a major
challenge. The microstrip patch antenna have found
extensive applications in wireless communication
systems owing to their advantages such as low profile,
conformability, low fabrication cost and ease of
integration with feed network. Microstrip patch
antennas comes with drawback of narrow bandwidth,
but wireless communication applications require broad
bandwidth and relative high gain in order to achieve
that we need to increase the substrate thickness, use of
low dielectric substrates and various impedance
matching feeding techniques and slotting techniques.
The concept of inserting slot array following a
chebyshev distribution has proven to give remarkable
functionality to an antenna [1]. It causes it to radiate
significantly at different ranges of frequencies by
using only one single feed point. But, it operates at
less number of bands. A rectangle added to an
equilateral triangle patch which is fed by a probe has a
dual-band operation. With the rapid development of
the wireless communication, the tri-band even multi-
band antennas are needed to meet the requirement.
Stacked microstrip antenna can achieve multi-band
circular polarization (CP) radiation more easily than
conventional antennas. Generally the stacked
microstrip antennas can easily achieve dual-band
operation [2]. But the limitations of the stacked
microstrip antenna are the size, fabrication complexity,
and cost.
In this paper, a single-feed multi-band microstrip
patch antenna for wireless communication applications
is presented. The multi-band is achieved by the patch,
which represents a combination of a rectangular and
an isosceles-triangular patch. The part of the patch
formed by the isosceles triangle has the same area as
the part formed by the rectangle. The rectangular slots
are inserted into the rectangular part, and the
triangular slots are inserted into the isosceles-
triangular part of the patch. The whole system is
fed by a coaxial probe into the substrate, with an
input impedance of 50 Ω.
II. ANTENNA DESIGN
The basic structure of the proposed antenna,
shown in Figure 1, consists of 3 layers. The lower
layer constitutes of ground plane covered by the
substrate having a width of 6 cm and a length of 15
cm. The middle layer is the substrate which has a
dielectric constant εr = 2.2 and a height of 0.32 cm.
The upper layer, which is the patch, consists of a
rectangle with a length of 4 cm and a width of 3
cm, joined with an isosceles triangle having the
same area as the rectangular patch and a base of 3
cm and a height of 8 cm.
Fig 1: Proposed Patch Structure
Inside the rectangular patch, two rectangular
slots were inserted, one with a length of 3 cm and a
width of 2 cm and the other with a length of 2.5 cm
and a width of 1.5 cm. Also, inside the triangular
patch, two triangular slots were inserted, one with a
base of 2 cm and a height of 3 cm and the other
with a base of 2.5 cm and a height of 2.25 cm.
Stubs were used in order to join the rectangular and
RESEARCH ARTICLE OPEN ACCESS
2. K.swetha et al. Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.62-65
www.ijera.com 63 | P a g e
triangular slots with a length of 0.25 cm and a width of
0.2 cm. Placing of slots into the structure increases the
beamwidth and increase resonances.
Fig 2: Antenna model
A parametric study and an optimization were
done, in order to find the best feeding point of the
structure. Several points were tested in order to get an
overview of the defined functioning of the antenna,
and to monitor the effect of both the rectangular and
triangular slots. Figure 2 shows the proposed antenna
on Rogers RT/ Duroid 5880 (tm). At first, the feeding
point is chosen near the edge of the rectangle on its
right-hand side. Results showed the operation of the
antenna at less number of bands and also with low
gain since the feeding point is bit far from the
triangular slot where the multi-band operation is
triggered. The feeding point is moved close to the
radiating elements, in order to obtain optimum
operation of the antenna. When the feeding point is
closer to the triangular slot, the functioning of the
antenna is more effective with relatively high gain.
III. RESULTS
A. Return Losses
Fig 3: Return loss
From Figure 3, the return losses of the proposed
antenna at 2.67 GHz, 2.94 GHz, 3.59 GHz, 3.71 GHz
and 4.75 GHz are -20.67 dB, -18.32 dB, -14.55 dB, -
11.80 dB and -13.31 dB respectively.
B. Gain
Fig 4: 2D- Gain Total
Fig 5: 3D- Gain Total
Figure 4 and Figure 5 shows the gain of the
antenna in 2D and 3D patterns. The gain of the
proposed antenna is 6.9831 dB.
C. Radiation Patterns
The far electric fields of the rectangular
patch are as follows
3. K.swetha et al. Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.62-65
www.ijera.com 64 | P a g e
Fig 6: Gain along Phi
Fig 7: Gain along Theta
The radiation pattern for the proposed antenna for
Phi and Theta at 0 deg and 90 deg is shown in the
Figure 6 and Figure 7.
D. Field Distributions
Fig 8: E-field Distributions
The effect produced by an electric charge that
exerts a force on charged objects is the E-field and its
distribution in the patch is as shown in the Figure 8.
Fig 9: H-filed Distributions
The measured intensity of a magnetic field in
the patch is shown in Figure 9.
E. Current Distribution
Fig 10: Mesh Plot
Figure 10 shows the current distribution on the
patch and from the figure it is clear that current
distribution is more on the patch when compared to
the substrate.
IV. CONCLUSION
From the analysis of multi-band rectangular-
triangular slotted patch antenna on Rogers RT/
Duroid 5880 (tm) substrate exhibits broadband
resonance with relatively high gain. Thus, this
model is well suitable for various S-band
applications like wireless CCTV and wireless
video links, WLAN applications (2.8 GHz),
WLAN, WiMax, wireless WiMax, 802.1 6a
applications (3.5 GHz) and also suitable for radar
system applications (4.75 GHz). The antenna is
successfully designed and optimized. The results
show that the antenna not only has multi-band
characteristic but also have good radiation patterns.
V. ACKNOWLEDGMENT
The authors would like to thank the
management of VIGNAN University, Vijayawada
for excellent encouragement during the tenure of
work.
REFERENCES
[1] J Costantine, K Y. Kabalan, Ali El-
Hajj, and Mohammad Rammal, “A New
Multi-band Microstrip Antenna Design
for Wireless Communications”, IEEE
Transactions on Antennas and
4. K.swetha et al. Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.62-65
www.ijera.com 65 | P a g e
Propogation Magazine, Vol. 49, No. 6, Dec
2007.
[2] Wen Liao, Qing-Xin Chu and Shu Du, “Tri-
band Circularly Polarized Stacked Microstrip
Antenna for GPS and CNSS Applications”,
IEEE Transactions, 2010.
[3] W. S. Chen and F. M. Hsieh, “A Broadband
Design for a Printed Isosceles Triangular
Slot Antenna for Wireless Communications”,
Microwave Journal, 48, 7, July 2005, pp. 98-
112.
[4] C. A. Balanis, Antenna Theory Analysis and
Design, Second Edition, New York, Wiley,
1997.
[5] J. Constantine, New Multi Band Design for a
Microstrip Patch Antenna Masters thesis,
American University of Beirut, October
2006.
[6] Kin-Lu Wong, Compact and Broadband
Microstrip Antennas, A Wiley-Interscience
Publication, 2002.
[7] Jawad K. Ali, “A New Compact Size
Microstrip Patch Antenna with Irregular
Slots for Handheld GPS Application”,
Eng. & Technology, Vol. 26, No. 10, 2008.
[8] Neenansha Jain, Anubhuti Khare, Rajesh
Nema, “E-Shape Microstrip Patch Antenna
on Different Thickness for pervasive Wireless
Communication”, International Journal of
Advanced Computer Science and
Applications, Vol. 2, No. 4, 2011.
[9] Nishamol M. S., Aanandan C. K.,
Mohanan P. and Vasudevan K., “Dual
Frequency Reconfigurable Microstrip
Antenna using Varactor Diodes”, IEEE
Transactions, 2011.
[10] Salman Haider, “Microstrip Patch Antennas
for Broadband Indoor Wireless Systems”,
2003.
[11] T. Sittironnarit and M. Ali, “Analysis and
Design of a Dual-Band Folded Microstrip
Patch Antenna for Handheld Device
Application”, IEEE Southeast Conference
Proceedings, 2002, pp. 255-258.
[12] P. A. Ambresh, P. M. Hadalgl, “Experimental
Results of Compact Dual Frequency
Microstrip Slot Antenna”, IJECT Vol. 2,
Issue 3, Sept. 2011.
[13] David M. Pozar and Sean M. Duffy, “A Dual-
Band Circularly Polarized Aperture-Coupled
Stacked Microstrip Antenna for Global
Positioning Satellite”, IEEE Transactions on
Antennas and Propagation, Vol. 45, No. 11,
November 1997.
[14] Raj Kumar, Nivedita Mishra, “On the
Design of Square-Cut Circular Multiband
Antenna for Wireless Communication”, 2nd
International Conference and workshop on
Emerging Trends in Technology
(ICWET)2011 Proceedings published by
International Journal of Computer
Applications (IJCA).
[15] S. Hebib, H. Aubert, O. Pascal, N.
Fonseca, L. Ries and J. M. Lopez,
“Pyramidal multi-band antennas for
GPS/Galileo/MicroSat Application”,
IEEE 2007.
[16] Vinod K. Singh, Zakir Ali, “Dual Band
U-Shaped Microstrip Antenna for
Wireless Communication”, Vol. 2(6),
ISSN, 2010.
AUTHORS BIOGRAPHY
Kambhampati Swetha.Completed
B.tech in Nimra College of Engineering,
affiliated t o JNTU Kakinada. Received
Masters degree from the K.L.University. Area of
Interests: Micro strip Patch Anetnnas, Wireless
Communications And Satellite Communications.
K.Satish Kumar was born in
ANDHRA PRADESH,INDIA.Completed B.tech in
Sri venkateswara college of engineering and
technology affiliated to Anna University
2011.Received masters degree from Vignan
University in 2014.Area of Interests:Embedded
systems, Antennas & Communications
B.Manoj Kumar Reddy was born in
ANDHRA PRADESH, INDIA.Completed B.tech
in St.Ann's college of engineering and technology
affiliated to JNTU University 2012.Received
masters degree from Vignan University in
2014.Area of interests: Embedded systems,
Antennas & Communications