This document summarizes the design and simulation of an ultra wideband microstrip patch antenna with band-notched characteristics. The antenna was designed on an FR-4 substrate with a dielectric constant of 4.4 and thickness of 1.6 mm. A polygon slot was etched into the rectangular patch to reject interference from WLAN and WiMAX systems in the 5.147-5.855 GHz frequency band. Simulation results showed the antenna achieved a return loss lower than -10 dB from 3.3-12.8 GHz with band rejection characteristics as desired. Radiation patterns were omnidirectional across the operating bandwidth as required for UWB applications.
Design of Dual Band Microstrip Antenna for Wi-Fi and WiMax ApplicationsTELKOMNIKA JOURNAL
In this paper, a dual band rectangular microstrip patch antenna with microstrip line is presented. The proposed antenna is designed on FR4 substrate with thickness 1.5 mm and relative permittivity 4.3. The antenna is designed to operate at 2.4/5.8 GHz bands for Wi-Fi/WiMax applications. The obtained return loss is -32.77dB at 2.4 GHz with 7.4% bandwidth and -25.955 dB at 5.8 GHz with 8.17% bandwidth. The practical and simulation result are computed. It is noted that there is a good agreement between the simulation and measured result (using vector network analyzer (VNA).
Design of Circular Patch with Double C-Shaped Slot Microstrip Antenna for LTE...TELKOMNIKA JOURNAL
The design of a circular patch microstrip antenna with double C-shaped for LTE 1800 MHz is
presented. The antenna is designed using FR-4 with dielectric constant of ε = 4.3, with thickness of
substrate that is 1.6 mm and the thickness of patch and ground are 0.025 mm, Respectively the simulation
results presented that the antenna works at frequency of 1714-1889.6 MHz, and work very well at
frequency of 1800 MHz with a Return loss -20.484 dB, bandwidth 175.6 MHz. Technique used for broaden
the bandwidth by using double C-shaped slot. In this paper presents S-Parameters, and Gain of microstrip
antenna circular patch with double C-shaped slot.
Microstrip Rectangular Monopole Antennas with Defected Ground for UWB Applica...IJECEIAES
This paper presents the design of new compact antennas for ultra wide band applications. Each antenna consists of a rectangular patch fed by 50Ω microstrip transmission line and the ground element is a defected ground structure (DGS). The aim of this study is to improve the bandwidth of these antennas by using DGS and the modification geometry of rectangular structure, which gives new compact antennas for UWB applications. The input impedance bandwidth of the antennas with S11<-10dB is more than 10GHz, from 3GHz to more than 14 GHz. The proposed antennas are investigated and optimized by using CST microwave studio, they are validated by using another electromagnetic solver Ansoft HFSS. The measured parameters present good agreement with simulation. The final antenna structures offer excellent performances for UWB system.
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.
Design of wide band slotted microstrip patch antenna with defective ground st...IJECEIAES
This paper proposes a microstrip patch antenna (MSPA) in the Ku band for satellite applications. The antenna is small in size with dimensions of about 40 mm×48 mm×1.59 mm and is fed with a coaxial cable of 50 Ω impedance. The proposed antenna has a wide bandwidth of 3.03 GHz ranging from 12.8 GHz to 15.8 GHz. To realize the characteristics of wideband the techniques of defective ground structure (DGS) and etching slots on the radiating element are adopted. The antenna is modeled on the FR4 substrate. A basic circular patch is selected for the design of a dual-frequency operation and in the next step DGS is introduced into the basic antenna and enhanced bandwidth is achieved at both the frequencies. To attain wider bandwidth two slots are etched on the radiating element of which one is a square ring slot and the second one is a circular ring slot. The novelty of the proposed antenna is a miniaturized design and unique response within the Ku band region which is applicable for wireless UWB applications with VSWR <2 and an average gain of 3.6 dB.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA jantjournal
A rectangular microstrip patch antenna, suitable for use in L-band frequency range of 1-2 GHz was designed and modeled using IE3D software. The simulated antenna was analyzed using coaxial feed technique and various antenna parameters like S11, VSWR, Antenna Gain and Antenna Efficiency were determined for the random feed point location. Also, the feed point was
varied within the radiating patch to arrive at the optimized feed location for minimum return loss. Further, a microstrip patch antenna was fabricated using the dimensions of the simulated antenna. The fabricated antenna was tested for obtaining the radiation pattern and other antenna parameters using standard anechoic chamber testing set up at ISAC/ISRO. The antenna
parameters were compared between simulation results and experimental results and the antenna was qualified for use in L-band frequency range with minimum return loss and maximum
bandwidth
Design of Dual Band Microstrip Antenna for Wi-Fi and WiMax ApplicationsTELKOMNIKA JOURNAL
In this paper, a dual band rectangular microstrip patch antenna with microstrip line is presented. The proposed antenna is designed on FR4 substrate with thickness 1.5 mm and relative permittivity 4.3. The antenna is designed to operate at 2.4/5.8 GHz bands for Wi-Fi/WiMax applications. The obtained return loss is -32.77dB at 2.4 GHz with 7.4% bandwidth and -25.955 dB at 5.8 GHz with 8.17% bandwidth. The practical and simulation result are computed. It is noted that there is a good agreement between the simulation and measured result (using vector network analyzer (VNA).
Design of Circular Patch with Double C-Shaped Slot Microstrip Antenna for LTE...TELKOMNIKA JOURNAL
The design of a circular patch microstrip antenna with double C-shaped for LTE 1800 MHz is
presented. The antenna is designed using FR-4 with dielectric constant of ε = 4.3, with thickness of
substrate that is 1.6 mm and the thickness of patch and ground are 0.025 mm, Respectively the simulation
results presented that the antenna works at frequency of 1714-1889.6 MHz, and work very well at
frequency of 1800 MHz with a Return loss -20.484 dB, bandwidth 175.6 MHz. Technique used for broaden
the bandwidth by using double C-shaped slot. In this paper presents S-Parameters, and Gain of microstrip
antenna circular patch with double C-shaped slot.
Microstrip Rectangular Monopole Antennas with Defected Ground for UWB Applica...IJECEIAES
This paper presents the design of new compact antennas for ultra wide band applications. Each antenna consists of a rectangular patch fed by 50Ω microstrip transmission line and the ground element is a defected ground structure (DGS). The aim of this study is to improve the bandwidth of these antennas by using DGS and the modification geometry of rectangular structure, which gives new compact antennas for UWB applications. The input impedance bandwidth of the antennas with S11<-10dB is more than 10GHz, from 3GHz to more than 14 GHz. The proposed antennas are investigated and optimized by using CST microwave studio, they are validated by using another electromagnetic solver Ansoft HFSS. The measured parameters present good agreement with simulation. The final antenna structures offer excellent performances for UWB system.
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.
Design of wide band slotted microstrip patch antenna with defective ground st...IJECEIAES
This paper proposes a microstrip patch antenna (MSPA) in the Ku band for satellite applications. The antenna is small in size with dimensions of about 40 mm×48 mm×1.59 mm and is fed with a coaxial cable of 50 Ω impedance. The proposed antenna has a wide bandwidth of 3.03 GHz ranging from 12.8 GHz to 15.8 GHz. To realize the characteristics of wideband the techniques of defective ground structure (DGS) and etching slots on the radiating element are adopted. The antenna is modeled on the FR4 substrate. A basic circular patch is selected for the design of a dual-frequency operation and in the next step DGS is introduced into the basic antenna and enhanced bandwidth is achieved at both the frequencies. To attain wider bandwidth two slots are etched on the radiating element of which one is a square ring slot and the second one is a circular ring slot. The novelty of the proposed antenna is a miniaturized design and unique response within the Ku band region which is applicable for wireless UWB applications with VSWR <2 and an average gain of 3.6 dB.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
DESIGN AND DEVELOPMENT OF MICROSTRIP PATCH ANTENNA jantjournal
A rectangular microstrip patch antenna, suitable for use in L-band frequency range of 1-2 GHz was designed and modeled using IE3D software. The simulated antenna was analyzed using coaxial feed technique and various antenna parameters like S11, VSWR, Antenna Gain and Antenna Efficiency were determined for the random feed point location. Also, the feed point was
varied within the radiating patch to arrive at the optimized feed location for minimum return loss. Further, a microstrip patch antenna was fabricated using the dimensions of the simulated antenna. The fabricated antenna was tested for obtaining the radiation pattern and other antenna parameters using standard anechoic chamber testing set up at ISAC/ISRO. The antenna
parameters were compared between simulation results and experimental results and the antenna was qualified for use in L-band frequency range with minimum return loss and maximum
bandwidth
An Internal Wideband Monopole Antenna for UMTS/WLAN Dual-Mode Mobile PhoneSaou-Wen Su
An internal wideband metal-plate monopole antenna for mobile phone applications is presented. The antenna is easily fabricated by bending a single metal plate and suitable to be embedded within the casing of a mobile phone as an internal antenna. Further, the antenna shows a wide operating bandwidth of about 5 GHz (about 1.8−6.7 GHz), making it easy to cover the UMTS band and the 2.4/5.2/5.8 GHz WLAN bands for mobile/WLAN dual-mode operation for a mobile phone.
A Miniature BroadBand Microstrip Antenna for LTE, Wi-Fi and WiMAX Applications IJECEIAES
A Compact microstrip antenna with rectangular slotted radiating element has been developed. Four slots have been introduced on the radiating element with the use of a partial ground plane and a wideband response has been obtained. The bandwidth of the proposed antenna is 1.7 GHz with a percentage bandwidth of 71%. A low-cost dielectric (FR4_EPOXY) has been considered in the development of the proposed antenna. The obtained frequency band is from 1.9 GHz to 3.6 GHz. To investigate the robustness of our modelled antenna the simulation process has been carried out using two different solvers (Finite Element Method and Finite Integration Technique). In addition, the designed antenna was realized and these results were compared with those of the simulation. The proposed antenna is suitable for many LTE bands {1, 3, 7… 38, 40} broadly deployed in European, South American, Asian, and African countries, Wi-Fi (2.4 GHz), and WiMAX technology (3.5 GHz).
Design of Planar Inverted F-Antenna for Multiband Applications IJEEE
Planar Inverted F- Antenna (PIFA) is widely used in handheld devices because of its various advantages like compact size, good bandwidth and moderate radiation patterns. In this paper, a design of Planar Inverted F- Antenna(PIFA) is proposed that resonates at the frequency of 2.5 GHz with a bandwidth of 300MHz. The relative permittivity of the substrate used is 2.2. The antenna is fed by coaxial feed. Also, gain, VSWR and radiation pattern of the antenna are studied.
EFFECT OF DIFFERENT SYMMETRIC SLITS ON MICROSTRIP PATCH ANTENNAjmicro
In this paper, a basic linearly polarised microstrip square patch antenna operating at 2.4 GHz is
proposed. We have modified the basic microstrip square patch antenna with rectangular shape slits, V
shape slits and truncated corners to achieve circular polarization. Basically we have designed five
different antennas to meet the specification. The various antennas have been simulated, fabricated and the
performance has been tested on network analyser (Agilent Technologies: N9912A, SNMY51464189,
ROHDE & SCHWARZ: ZVL13, 9 KHz to 13.6GHz,). The simulated and tested performance shows close
agreement with each other. The various structures used in this study are microstrip square patch radiator,
microstrip square patch radiator with truncated corner, rectangular slits, truncated corner with
rectangular slits and V shape slits. The experiment results show rectangular slits with truncated corners in
the main square patch and rectangular slits in the main square patch provide better performance with
respect to the antenna parameters. Designed antenna is compact and provides circular polarization at the
required operating frequency of 2.4GHz with improved bandwidth and gain. The use of circularly
polarized antennas presents an attractive solution to achieve this polarization match which allows for
more flexibility in the angle between transmitting and receiving antennas. It gives the following
advantages such as reduction in the effect of multipath reflections, decrease in transmission losses,
enhancement of weather penetration and allowing any orientation to the communication system
DESIGN AND DEVELOPMENT OF ITERATIVE SQUARE RING FRACTAL ANTENNA FOR DUAL BAND...jmicro
In this paper, iterative square ring fractal antenna is proposed, designed and developed for Wireless
application. The functional characteristics of the antenna such as return loss, VSWR, radiation pattern and
gain are evaluated. Compact size and multi-band compatibility are the major design requirements of
fractal antenna. The proposed antenna has the dimension of 20mm X 20mm and it supports dual band
which is designed in FR4 substrate. It resonates at 5.9 GHz and 8.8 GHz with the return loss of -33dB, -
16dB, respectively. Further, the performance of the antenna is analyzed by varying feed position, feed
width and substrate thickness. By the analysis, we concluded that the proposed antenna have better
performance at left feed position with 0.9mm of feed width at the substrate thickness of 3.2mm.
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.
Frequency Reconfiguration Mechanism of a PIN Diode on a Reconfigurable Antenn...IJECEIAES
Microstrip patch antennas are increasingly gaining popularity for usage in portable wireless system applications due to their light weight, low profile structure, low cost of production and robust nature. The patch is generally made of a conducting material such as copper or gold and can take any possible shapes, but rectangular shapes are generally used to simplify analysis and performance prediction. Microstrip patch antenna radiates due to the fringing fields between the patch edge and ground plane. In this work, a frequency reconfigurable antenna with a BAR63-02V Positive-IntrinsicNegative (PIN) diode is designed, simulated and fabricated. The antenna operates at 2.686GHz for Long-Term Evolution (LTE2500) and 5.164GHz for Wireless Local Area Network (WLAN) applications. In the OFF state, the antenna operates at 5.302GHz, which is also suitable for WLAN application. The proposed antenna is fabricated on a FR-4 substrate with a relative dielectric constant, ε r of 4.5, thickness, h of 1.6mm and loss tangent, tan δ of 0.019. The fabrication process is carried out at the Advanced Printed Circuit Board (PCB) Design Laboratory in UTHM.
IOSR Journal of Applied Physics (IOSR-JAP) is an open access international journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
An Internal Wideband Monopole Antenna for UMTS/WLAN Dual-Mode Mobile PhoneSaou-Wen Su
An internal wideband metal-plate monopole antenna for mobile phone applications is presented. The antenna is easily fabricated by bending a single metal plate and suitable to be embedded within the casing of a mobile phone as an internal antenna. Further, the antenna shows a wide operating bandwidth of about 5 GHz (about 1.8−6.7 GHz), making it easy to cover the UMTS band and the 2.4/5.2/5.8 GHz WLAN bands for mobile/WLAN dual-mode operation for a mobile phone.
A Miniature BroadBand Microstrip Antenna for LTE, Wi-Fi and WiMAX Applications IJECEIAES
A Compact microstrip antenna with rectangular slotted radiating element has been developed. Four slots have been introduced on the radiating element with the use of a partial ground plane and a wideband response has been obtained. The bandwidth of the proposed antenna is 1.7 GHz with a percentage bandwidth of 71%. A low-cost dielectric (FR4_EPOXY) has been considered in the development of the proposed antenna. The obtained frequency band is from 1.9 GHz to 3.6 GHz. To investigate the robustness of our modelled antenna the simulation process has been carried out using two different solvers (Finite Element Method and Finite Integration Technique). In addition, the designed antenna was realized and these results were compared with those of the simulation. The proposed antenna is suitable for many LTE bands {1, 3, 7… 38, 40} broadly deployed in European, South American, Asian, and African countries, Wi-Fi (2.4 GHz), and WiMAX technology (3.5 GHz).
Design of Planar Inverted F-Antenna for Multiband Applications IJEEE
Planar Inverted F- Antenna (PIFA) is widely used in handheld devices because of its various advantages like compact size, good bandwidth and moderate radiation patterns. In this paper, a design of Planar Inverted F- Antenna(PIFA) is proposed that resonates at the frequency of 2.5 GHz with a bandwidth of 300MHz. The relative permittivity of the substrate used is 2.2. The antenna is fed by coaxial feed. Also, gain, VSWR and radiation pattern of the antenna are studied.
EFFECT OF DIFFERENT SYMMETRIC SLITS ON MICROSTRIP PATCH ANTENNAjmicro
In this paper, a basic linearly polarised microstrip square patch antenna operating at 2.4 GHz is
proposed. We have modified the basic microstrip square patch antenna with rectangular shape slits, V
shape slits and truncated corners to achieve circular polarization. Basically we have designed five
different antennas to meet the specification. The various antennas have been simulated, fabricated and the
performance has been tested on network analyser (Agilent Technologies: N9912A, SNMY51464189,
ROHDE & SCHWARZ: ZVL13, 9 KHz to 13.6GHz,). The simulated and tested performance shows close
agreement with each other. The various structures used in this study are microstrip square patch radiator,
microstrip square patch radiator with truncated corner, rectangular slits, truncated corner with
rectangular slits and V shape slits. The experiment results show rectangular slits with truncated corners in
the main square patch and rectangular slits in the main square patch provide better performance with
respect to the antenna parameters. Designed antenna is compact and provides circular polarization at the
required operating frequency of 2.4GHz with improved bandwidth and gain. The use of circularly
polarized antennas presents an attractive solution to achieve this polarization match which allows for
more flexibility in the angle between transmitting and receiving antennas. It gives the following
advantages such as reduction in the effect of multipath reflections, decrease in transmission losses,
enhancement of weather penetration and allowing any orientation to the communication system
DESIGN AND DEVELOPMENT OF ITERATIVE SQUARE RING FRACTAL ANTENNA FOR DUAL BAND...jmicro
In this paper, iterative square ring fractal antenna is proposed, designed and developed for Wireless
application. The functional characteristics of the antenna such as return loss, VSWR, radiation pattern and
gain are evaluated. Compact size and multi-band compatibility are the major design requirements of
fractal antenna. The proposed antenna has the dimension of 20mm X 20mm and it supports dual band
which is designed in FR4 substrate. It resonates at 5.9 GHz and 8.8 GHz with the return loss of -33dB, -
16dB, respectively. Further, the performance of the antenna is analyzed by varying feed position, feed
width and substrate thickness. By the analysis, we concluded that the proposed antenna have better
performance at left feed position with 0.9mm of feed width at the substrate thickness of 3.2mm.
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.
Frequency Reconfiguration Mechanism of a PIN Diode on a Reconfigurable Antenn...IJECEIAES
Microstrip patch antennas are increasingly gaining popularity for usage in portable wireless system applications due to their light weight, low profile structure, low cost of production and robust nature. The patch is generally made of a conducting material such as copper or gold and can take any possible shapes, but rectangular shapes are generally used to simplify analysis and performance prediction. Microstrip patch antenna radiates due to the fringing fields between the patch edge and ground plane. In this work, a frequency reconfigurable antenna with a BAR63-02V Positive-IntrinsicNegative (PIN) diode is designed, simulated and fabricated. The antenna operates at 2.686GHz for Long-Term Evolution (LTE2500) and 5.164GHz for Wireless Local Area Network (WLAN) applications. In the OFF state, the antenna operates at 5.302GHz, which is also suitable for WLAN application. The proposed antenna is fabricated on a FR-4 substrate with a relative dielectric constant, ε r of 4.5, thickness, h of 1.6mm and loss tangent, tan δ of 0.019. The fabrication process is carried out at the Advanced Printed Circuit Board (PCB) Design Laboratory in UTHM.
IOSR Journal of Applied Physics (IOSR-JAP) is an open access international journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
DESIGN & PARAMETRIC STUDY OF RECTANGULAR SLOT MICROSTRIP PATCH ANTENNA FOR UW...IJEEE
A Microstrip fed antenna which consists of a
rectangular patch with rectangular shaped slot incorporated
into patch is presented for ultra wide band application with
enhanced bandwidth. The proposed antenna achieves an
impedance bandwidth of 8.9GHz (2.3-11.2GHz) with
VSWR< 2 for over the entire bandwidth.
Design of a Dual-Band Microstrip Patch Antenna for GPS,WiMAX and WLANIOSR Journals
Abstract : The A multi band microstrip patch antenna has been designed for GPS,WiMAX and WLAN applications. The proposed antenna is designed by using substrate of RT duroid having permittivity of about 2.2 and loss tangent of 1.The substrate is having thickness of 6mm at which a trapezoidal patch antenna with V slot has been introduced in this paper. The designing results like S11 parameter return loss,VSWR and field pattern is plotted successfully. The obtained result is having a two band resonance with S11 less then -10dB and VSWR less than 2. So a dual band trapezoidal microstrip patch antenna has been designed and all results are plotted.Simmulating software used is IE3D. Keywords - V-shape slot, RT duroid, Dual band, WLAN, WiMAX,
Design of a Dual-Band Microstrip Patch Antenna for GPS,WiMAX and WLAN.IOSR Journals
The A multi band microstrip patch antenna has been designed for GPS,WiMAX and WLAN
applications. The proposed antenna is designed by using substrate of RT duroid having permittivity of about 2.2
and loss tangent of 1.The substrate is having thickness of 6mm at which a trapezoidal patch antenna with V slot
has been introduced in this paper. The designing results like S11 parameter return loss,VSWR and field pattern
is plotted successfully. The obtained result is having a two band resonance with S11 less then -10dB and VSWR
less than 2.
So a dual band trapezoidal microstrip patch antenna has been designed and all results are plotted.Simmulating
software used is IE3D.
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
A cpw fed antenna rectangular shaped box with semicircle slot for wlaneSAT Journals
Abstract An Ultra-wideband (UWB) microstrip antenna fed by a coplanar Waveguide (CPW) is proposed. The proposed antenna consists of a rectangular shape box embedded with semicircle slot in the patch. It occupies a total area of 39×36.275 mm2. It provides a wide impedance bandwidth of 7.39 GHz ranging from 2.66 GHz to 10.05 GHz. The parametric studies are performed to understand the characteristics of proposed antenna. The details of proposed ultra-wideband are described. The various antenna parameters like S-parameters, current distribution and radiation pattern are studied. The proposed antenna is also suitable for WLAN/WiMAX/ UWB applications. Keywords: Microstrip Antenna, WLAN, WI-MAX, UWB, CPW feed.
Small Size Planar Inverted-F Antenna for WiMAX ApplicationsIJEEE
This work presents a small size planner inverted-F antenna (PIFA), with a single feed which covers WiMAX (3.2-3.6 GHz) and (5-5.8 GHz) range. The proposed antenna has many advantages like compact size and wide operation bandwidth. The antenna portion of 20mm* 15mm and the overall dimension25mm *40mm can be easily applied in the USB dongle.
Compact Rectangular Slot Microstrip Antenna with Band-Notched Characteristics...jmicro
In this paper, we present an offset microstrip-fed ultrawideband antenna with band notch
characteristics.The antenna structure consists of rectangular radiating patch and ground plane with
rectangular shaped slot, which increases impedance bandwidth upto 117.73%(2.9-11.2GHz).A new
modified U slot is etched in the radiating patch to create band-notched properties in the WiMAX (3.3-
3.7GHz) and C-band satellite communication (3.7-4.15GHz).Furthermore, parametric studies have been
conducted using EM simulation software CADFEKO suite(7.0) and optimized with stable radiation pattern
which satisfied UWB requirement for VSWR<2.A prototype of antenna is fabricated on 1.6mm thick FR-4
substrate with dielectric constant of 4.4 and loss tangent of 0.02.The designed antenna exhibits
bidirectional and omni directional radiation patterns along E and H-plane with stable gain and efficiency
over entire operating band except notch frequency band. Simulated results are in good agreement with the
measured results of the proposed antenna which makes it a good candidate for UWB application.
DESIGN OF A MINIATURE RECTANGULAR PATCH ANTENNA FOR KU BAND APPLICATIONSijasa
A significant portion of communication devices employs microstrip antennas because of their compact size,
low profile, and ability to conform to both planar and non-planar surfaces. To achieve this, we present a
miniature inset-fed rectangular patch antenna using partial ground plane for Ku band applications. The
proposed antenna design used an operating frequency of 15.5 GHz, a FR4 substrate with a dielectric
constant of 4.3, and a thickness of 1.4 mm. It is fed by a 50 Ω inset feedline. Computer simulation
technology (CST) software is used to design, simulate, and analyze. The simulation yields the antenna
performance parameters, including return loss (S11), bandwidth, VSWR, gain, directivity, and radiation
efficiency. The simulation findings revealed that the proposed antenna resonated at 15.5 GHz, with a
return loss of -22.312 dB, a bandwidth of 2.73 GHz (2730 MHz), VSWR of 1.17, a gain of 3.843 dBi, a
directivity of 5.926 dBi, and an antenna efficiency of -2.083 dB (61.901%).
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.
Compact Rectangular Slot Microstrip Antenna with Band-Notched Characteristics...jmicro
n this paper, we present an offset microstrip-fed ultraw
ideband antenna with band notch
characteristics.The antenna structure consists of rectangular r
adiating patch and ground plane with
rectangular shaped slot, which increases impedance bandwidth upto 1
17.73%(2.9-11.2GHz).A new
modified U slot is etched in the radiating patch to create band-
notched properties in the WiMAX (3.3-
3.7GHz) and C-band satellite communication (3.7-4.15GHz).Further
more, parametric studies have been
conducted using EM simulation software CADFEKO suite(7.0) and
optimized with stable radiation pattern
which satisfied UWB requirement for VSWR<2.A prototype of ante
nna is fabricated on 1.6mm thick FR-4
substrate with dielectric constant of 4.4 and loss tangent of 0.02
.The designed antenna exhibits
bidirectional and omni directional radiation patterns along E and
H-plane with stable gain and efficiency
over entire operating band except notch frequency band. Simulated res
ults are in good agreement with the
measured results of the proposed antenna which makes it a good
candidate for UWB application.
Design of Square Miniaturized L Band Fractal AntennaEditor IJMTER
This paper introduces a new square patch miniaturized antenna operating in L band. The
design and analysis of the antenna is executed using IE3D electromagnetic simulation software using
substrate parameter of glass epoxy FR-4 substrate. In this paper, a Square patch of 10X10 mm2 is
investigated. In further improvements, parts of the patch are removed in two iterations to obtain a
miniaturized antenna. The proposed fractal antenna has a great potential of application and gives a
stable radiation performance in the frequency range of 1.333 GHz to 2 GHz.
Microstrip patch antennas are the most common form
of printed antennas. They became very popular due to their low
profile geometry, light weight and low cost. A Rectangular
Microstrip Patch Antenna with probe feed and substrate used is
Arlon AD260 has the relative permittivity of which is 2.6 is
designed and simulated using high frequency structure simulator
(HFSS). All the Parameters of this microsrip patch Antenna such
as bandwidth, S - parameter, Reflection loss and VSWR has been
found and plotted. The main objective of this work is to consider
the reactive loading effect on the patch and its effect towards the
improvement of the antenna characteristics, particularly the
radiation characteristics in principle plane (E and H) is
examined. As per theoretical approach reactive loading creates
either capacitive loading or inductive loading. Due to this effect
the antenna performance may be degraded or enhanced in terms
of efficiency, isolation, gain, impedance matching etc. The results
of this designed antenna are compared with the existing Micro
strip antenna
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H010435256
1. IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
e-ISSN: 2278-1676,p-ISSN: 2320-3331, Volume 10, Issue 4 Ver. III (July – Aug. 2015), PP 52-56
www.iosrjournals.org
DOI: 10.9790/1676-10435256 www.iosrjournals.org 52 | Page
Band Notched Rectangular Patch Antenna with Polygon slot
Chitra Choubisa#1
, Shilpa Jangid #2
#
Department of Electronics & Communication Engineering, Mewar University
Gangrar Chittorgarh(Raj.)-312001
Abstract: This paper presents design & simulation of ultra wide band microstrip patch antenna with notched
characteristics. The antenna was designed using FR-4 substrate with dielectric constant of 4.4 and thickness of
1.6 mm. The proposed antenna was analysed & simulated on electromagnetic (EM) simulation software. The
total size of antenna structure is 15×14.5 mm2
and it is excited with 50 Ω microstrip feedline. With this design,
the return loss is lower than -10 dB in frequency range of 3.3-12.8 GHz. It also shows the band-notch
characteristic in the UWB band to avoid interference, caused by WLAN (5.15–5.825 GHz) and WiMAX (5.25–
5.85 GHz) systems. The band-notched characteristics in the 5.147-5.855 GHz frequency band has been achieved
by etching a polygon slot. The detail design & graphs are shown in the paper.
Keywords: Microstrip patch antenna, UWB antenna, partial ground plane.
I. Introduction
An antenna is an electromagnetic radiator, a sensor and a transducer that converts guided
electromagnetic energy in a transmission line to radiate electromagnetic energy [1]. Recently Ultra Wideband
(UWB) antenna plays an important role in communication system because of its low cost, low power
consumption, low interference, capability of high data rate of around 100 megha bits/second and easy
fabrication [2]. As UWB have great potential in high speed short range wireless applications, such as medical
imaging system, ground penetrating radars, high data rate wireless local area networks (WLAN),
communication systems for military and short pulse radars for automotive even or robotics [3][4]; for designing
of this antenna, miniaturization of its circuit design, low voltage standing wave ratio (VSWR<2), constant phase
center and constant gain over entire operating frequency band are necessary [5].
In 2002, the Federal Communication Commission (FCC) assigned the frequency band of 3.1 to 10.6
GHz for UWB [6]. But unfortunately other signal spectrum WLAN (5.15–5.825 GHz) and WiMAX (5.25–5.85
GHz) are interfering in this range of UWB [7], which affecting the overall system performance of UWB system
in terms of increasing pulse distortion and bit error rate [8]. To overcome this unwanted problem, UWB
antennas are designed with band notched characteristics in the affected frequency bands.
For this, different types of slots are etched in the patch and ground plane. For example, U-shaped slot
[9], V-shaped slot [10], E-shaped slot [11], S- shaped slot [12], C-shaped slot [13], Pie-shaped slot [14], square-
shaped slot [15] etc.
In this paper, an UWB microstrip patch antenna is proposed. The band notched characteristics of
proposed antenna has been achieved by etching a polygon slot in rectangular patch with two steps. By
simulating the antenna design on simulation software, optimized parameters of design have been obtained. The
outline of this paper is as follows. In the section II, antenna design has been described. The simulation results &
discussions are presented in section III. Finally, the paper is concluded in section IV.
II. Antenna Description
The proposed microstrip patch antenna is designed using FR-4 substrate with dielectric constant (εr) of
4.4 and thickness of 1.6 mm. The antenna design consists of a rectangular patch with two steps, a polygon slot, a
partial ground plane and a feed-line. The antenna configuration is shown in Fig.1, which shows the whole
geometry with detailed design parameters of the proposed UWB notched antenna. The designed antenna was
simulated using electromagnetic simulation software.
2. Band Notched Rectangular Patch Antenna with Polygon slot
DOI: 10.9790/1676-10435256 www.iosrjournals.org 53 | Page
Table 1: Optimized Parameters
Parameter Optimized Value
𝑊𝑝 15 mm
𝐿 𝑝 12 mm
𝐻𝑝 14.5 mm
𝑆1 1.5 mm
𝑆2 1 mm
𝐻𝑠 10.36 mm
𝐻𝑠1 3.51 mm
𝑊𝑠 10 mm
𝐻𝑓 16.5 mm
𝑊𝑓 2.4 mm
𝐻𝑔 14.7 mm
𝐻𝑔1 12 mm
𝑊𝑔𝑓 2.8 mm
(a)
(b)
Fig.1. Antenna configuration (a) front (b) back view
The substrate dimension is 30×35 mm2
. The gap for slot has been taken as 0.2mm. The antenna was
excited using a 50Ω microstrip feedline whose width was calculated by using microstrip design equations. The
polygon slot was etched in the rectangular patch as per given dimensions. Based on above design, the optimized
parameters of proposed antenna are given in Table 1. The geometric parameters of rectangular patch with two
steps, a partial ground plane, feed line and polygon slot were optimized with simulation software to get desired
performance in terms of the return loss and bandwidth over wide frequency range.
III. Results And Discussion
The performance of proposed antenna was simulated & measured in this section by using
electromagnetic (EM) simulation software. The simulated results of return loss for this antenna with and without
slot are shown in Fig. 2. It represents that the antenna has a wide bandwidth ranging from 3.3 - 12.8GHz. The
overall target of the proposed UWB antenna design is to achieve good output in terms of return loss below -10
dB. The polygon slot is rejecting the frequency band of 5.147 – 5.855 GHz, so frequency interference caused by
3. Band Notched Rectangular Patch Antenna with Polygon slot
DOI: 10.9790/1676-10435256 www.iosrjournals.org 54 | Page
WLAN and WiMAX can be avoided. The simulated result of VSWR against frequency (GHz) is shown in
Fig.3. This parameter of the antenna is also related to the return loss. As UWB characteristic requires the VSWR
between 1 and 2, it can be observed that proposed antenna has a notched frequency band of 5.147 GHz to 5.855
GHz as expected with VSWR > 2. Desired VSWR values have been obtained throughout the frequency region
except from 5.147 GHz to 5.855 GHz.
Fig.2. Simulated return loss of the antenna with & without notched band behavior
Fig.3 Simulated VSWR of the antenna with notched band behavior
The radiation patterns of the proposed antenna is simulated at 4, 5.5, 8 and 10 GHz frequencies along
both E-plane and H- plane as shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7 respectively. In the view of UWB
applications, radiation pattern of the antenna should be omnidirectional. The results of radiation pattern of the
proposed antenna at various frequencies 4, 5.5, 8 and 10 GHz demonstrate that the radiation pattern is nearly
omnidirectional with change in the frequency across its operating bandwidth.
4. Band Notched Rectangular Patch Antenna with Polygon slot
DOI: 10.9790/1676-10435256 www.iosrjournals.org 55 | Page
(a) (b)
Fig 4: Simulated radiation patterns of the antenna in (a) E-plane (b) H-plane at f = 4GHz
(a) (b)
Fig 5: Simulated radiation patterns of the antenna in (a) E-plane (b) H-plane at f=5.5GHz
(a) (b)
Fig 6: Simulated radiation patterns of the antenna in (a) E-plane (b) H-plane at f=8 GHz
5. Band Notched Rectangular Patch Antenna with Polygon slot
DOI: 10.9790/1676-10435256 www.iosrjournals.org 56 | Page
(a) (b)
Fig 7: Simulated radiation patterns of the antenna in (a) E-plane (b) H-plane at f=10 GHz
Fig. 4, 5, 6 and 7 show the simulated radiation patterns at different frequencies at =90deg (E-plane)
and =90deg (H-plane). It can be observed from all radiation pattern that, they received high power level except
at the notched frequency.
IV. Conclusion
This paper represents a simple rectangular microstrip patch antenna with partial ground for UWB
applications. The proposed UWB antenna can be operated from 3.3 to 12.8 GHz frequency range with return
loss less than -10 dB and is rejecting the frequency band of about 5.147 to 5.855 GHz to avoid the frequency
interference from WLAN and WIMAX. The good performance of proposed UWB antenna structure makes it
suitable for future UWB communication applications.
References
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[2]. R. Garg, P. Bhartia, I. Bahl and A. Ittipiboon “Microstrip antenna design handbook”, Artech House, Norwood, MA, USA, 2001.
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[11]. M.A. Matin, “Stacked E-shaped patch antenna for lower band Ultrawideband (UWB) Applications,” IET International Conference
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[12]. S.-W.Qu, J.-L. Li, and Q. Xue, “Aband-notched ultra wideband printed monopole antenna,” IEEE Antennas Wireless Propag.
Lett., vol. 5, pp. 495–498, 2006.
[13]. Q.-X. Chu and Y.-Y. Yang, “A compact ultra wideband antenna with 3.4/5.5 GHz dual band-notched characteristics,” IEEE Trans.
Antennas Propag., vol. 56,no. 12, pp. 3637–3644, Dec. 2008.
[14]. Gagandeep kaur, Geetanjali single, Simranjeet kaur, “Design of Wideband Micro strip Patch Antenna Using Defected Ground
Structure for Wireless Applications,” IJARCSSE, 3(10), pp. 762-765, October – 2013.
[15]. Shilpa Jangid and Mithilesh Kumar “A Novel UWB Band Notched Rectangular Patch Antenna with Square Slot”, IEEE conference
CICN-2012, pp. 15-19, Mathura, 3-5 Nov. 2012.