This paper presents modified patch antenna for 3 GHz and 5 GHz operating frequencies. Here different approaches are studied by varying slot sizes, defected ground size, notch and also changing feed position. Insertion of slots gives dual frequency operation. Notch provides shifting of lower frequency band towards left hand side. Here combined effect of each techniques adopted gives desired result. Proposed antenna resonates for 3 and 5 GHz frequency. Simulation is done using IE3D software for various parameters. Return loss of final design was -12.17 dB for 3 GHz frequency and VSWR of 1.65. For 5 GHz simulation response was -10.04dB return loss and VSWR of 1.91. Proposed antenna is fabricated giving different details. Paper gives good agreement between measured and simulated results.
Multiband Circular Microstrip Patch Antenna for WLAN Applicationtheijes
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.
MINIATURISATION OF PATCH ANTENNA USING NOVEL FRACTAL GEOMETRYIAEME Publication
In the Field of low profile antennamicro strip patch antennas have attracted many researchers due to small sizeand low cost of fabrication. One of trending member of new designs is Fractalantenna. Fractal shapes are recursive/repetitive self-similar geometries, dueto this self-similarity they can provide high gain, multiband, widebandsolutions and design miniature antenna. Fractal shapes are widely used incomputing, analysis and design; recent trends suggest positive outcomes ofusing fractal shapes in electromagnetics and communication system. In thispaper Jerusalem cube fractal shape is introduced in probe fed conventionalpatch antenna for L1 band. A dual band antenna resonating at 1.41 GHz (L) and3.37 (S) GHz, band is constructed using said fractal shape.
Multiband Circular Microstrip Patch Antenna for WLAN Applicationtheijes
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.
MINIATURISATION OF PATCH ANTENNA USING NOVEL FRACTAL GEOMETRYIAEME Publication
In the Field of low profile antennamicro strip patch antennas have attracted many researchers due to small sizeand low cost of fabrication. One of trending member of new designs is Fractalantenna. Fractal shapes are recursive/repetitive self-similar geometries, dueto this self-similarity they can provide high gain, multiband, widebandsolutions and design miniature antenna. Fractal shapes are widely used incomputing, analysis and design; recent trends suggest positive outcomes ofusing fractal shapes in electromagnetics and communication system. In thispaper Jerusalem cube fractal shape is introduced in probe fed conventionalpatch antenna for L1 band. A dual band antenna resonating at 1.41 GHz (L) and3.37 (S) GHz, band is constructed using said fractal shape.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of
3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3 . The measured results indicate that the proposed
antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi
and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed
antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for
the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi
and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3 The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability
Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability
Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
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.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
Microstrip patch antenna for pcs and wlaneSAT Journals
Abstract Due to development in wireless devices, it poses a new challenge for the design of an antenna in wireless communication. Patch antennas are well suited for various wireless application systems due to their low weight, low profile, versatility, conformability, low cost and low sensitivity to manufacturing tolerances. This paper present design, simulation of a rectangular micro strip antenna for WLAN and PCS. The aim of the work is to design reliable broadband, compact patch antenna for wireless devices. Antenna is proposed which is providing circular polarization, dual band, resonant frequencies at 1.9 GHz, 2.4 GHz. Key Words: Patch antenna, co-axial feeding, polarization, dual band, HFSS …
Comparative Analysis for Different Stack Shaped Microstrip Patch Antennaijsrd.com
A compact stack antenna consisting of square patch, loop couplers and inset feed line is reviewed in this work. This proposed design represents a stacked patch antenna having an arrangement of two substrates separated by an air gape and a coupling is provided using square loop structure. The structure is reviewed in two different directions firstly the feed arrangement is varied and secondly a variation in coupler structure is done to make the antenna work at multiple frequencies in UWB range. The simulation results of this work with different resonator structure and feed structures are presented and comparative analysis of these different arrangements is presented in this paper. Simulation results obtained from the proposed antenna for return loss, polar radiation and pattern voltage standing wave ratio (VSWR) shows its suitability for ultra wide band application.
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.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of
3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3 . The measured results indicate that the proposed
antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi
and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed
antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for
the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi
and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3 The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability
Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability
Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
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.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONS jantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
PLANAR ACS FED DUAL BAND ANTENNA WITH DGS FOR WIRELESS APPLICATIONSjantjournal
A novel Asymmetric Coplanar Strip (ACS) fed antenna with Defected Ground Structure (DGS) suitable for dual application is presented. The Method of Moments (MoM) based mentor graphics IE3D electromagnetic solver has been used for this design. Dual band operation has been obtained by modifying the ground plane of the proposed design with spur-slots. It has been fabricated and tested with the overall size of 21x15x1.6 mm3. The measured results indicate that the proposed antenna yields <-10dB impedance bandwidth of 13.13% and 9.86% which meets the requirement of 3.5GHz and 5.5GHz Wireless Local Area Network (WLAN) and World Wide Interoperability Microwave Access (WiMAX) applications. The approximate lumped equivalent circuit extraction for the proposed DGS fed dual band antenna has been discussed in detail. Because of its stable radiation patterns with low cross polarization,miniature size, high average antenna gain of 2.5dBi and good electromagnetic characteristics, the proposed antenna is a promising candidate for dual mode wireless communication devices.
Microstrip patch antenna for pcs and wlaneSAT Journals
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BODY ANTENNA WITH DGS FOR BODY CENTRIC WIRELESS COMMUNICATION SYSTEM
1. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
DOI: 10.5121/jant.2016.2104 37
BODY ANTENNA WITH DGS FOR BODY
CENTRIC WIRELESS COMMUNICATION
SYSTEM
Hitesh Joshi [1]
, Ravindra Prakash Gupta [2]
Research Scholar, Pacific University, Udaipur (Raj.),India[1]
, Manda Institute of
Technology, Bikaner(Raj), India[2]
ABSTRACT
This paper presents modified patch antenna for 3 GHz and 5 GHz operating frequencies. Here different
approaches are studied by varying slot sizes, defected ground size, notch and also changing feed position.
Insertion of slots gives dual frequency operation. Notch provides shifting of lower frequency band towards
left hand side. Here combined effect of each techniques adopted gives desired result. Proposed antenna
resonates for 3 and 5 GHz frequency. Simulation is done using IE3D software for various parameters.
Return loss of final design was -12.17 dB for 3 GHz frequency and VSWR of 1.65. For 5 GHz simulation
response was -10.04dB return loss and VSWR of 1.91. Proposed antenna is fabricated giving different
details. Paper gives good agreement between measured and simulated results.
KEYWORDS
Body Antenna, Patch, slot, DGS, feed line, center, Body centric wireless communication
1. INTRODUCTION
Patch antenna is a important part of mixer as it is used as receiver of RF signal from space. In
high-performance aircraft, spacecraft, satellite, and missile applications, where size, weight, cost,
performance, ease of installation, and aerodynamic profile are constraints, low-profile antennas
may be required. Presently there are many other government and commercial applications, such
as mobile radio and wireless communications that have similar specifications. It works as body
antenna as installation is quite easier.
Good body antenna requires thick substrate means lower dielectric constant this is because it fits
according to the need of design. They are soft so easily drilling is possible. It provides better
efficiency, larger bandwidth, loosely bound fields for radiation into space, but at the expense of
larger element size. There are many configurations that can be used to feed microstrip antennas.
There are four most popular feeding microstrip line, coaxial probe, aperture coupling, and
proximity feed. In the proposed antenna microstrip feed line was used. The microstrip feed line is
also a conducting strip, usually of much smaller width compared to the patch. The microstrip-line
feed is easy to fabricate, simple to match by controlling the inset position and rather simple to
model.
2. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
38
The standard FR-4 substrate material has been mostly used as low cost material for analog and
digital circuit design for lower frequencies because of relative high dissipation loss and dielectric
constant variation. Resin is combined with high-quality core materials like fine glass fabrics or
aramid. Meanwhile, resin-based substrates with enhanced electrical properties are commercially
available for high frequency applications ensuring low dissipation loss over a broad frequency
range. The substrate height determines the width of the microstrip line for given characteristic
impedance. The design of low impedance microstrip lines can result in very wide strips with
cutoff frequencies of higher-order modes within or near the operating frequency range. With
narrow microstrip lines on thick substrates, the risk of undesired parasitic effects occurs. When
the substrate thickness h reaches a quarter-wavelength, then the dielectric-cladded metal plate
forms an open-ended resonator in normal direction with respect to the substrate surface, which
would be prone to radiating electromagnetic energy. For a high dielectric constant, the dielectric-
air interface acts like a magnetic wall for the resonating field.
2. DESIGN
Different dimensions can be calculated by standard formulas.
For an efficient radiator, a practical width that leads to good radiation efficiencies is
= = (1)
where υ0 is the free-space velocity of light.
(2)
Determine the effective dielectric constant of the microstrip antenna using relation,
ℎ > 1
⁄
= + 1 + 12
⁄
(3)
(4)
Once W is found, determine the extension of the length 3L by formula
= 0.412
" #$$ %.&'(
)
*
%. +,-
" #$$ %. ./'(
)
*
%./-
(5)
(6)
εeff = 3.3356
∆L = 0.044 mm
W = 30.6 mm
3. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
39
The actual length (L)of the patch can be determined by
0 =
#$$
− 2∆2 (7)
(8)
Effective Length
0 = 0 + 2∆2
(9)
3. SOFTWARE AND STEPS
For Simulation IE3D software was used as it helps in 3D designing. IE3D is a full-wave
electromagnetic simulator based on the method of moments, solution of integral equation which
has an excellent accuracy for frequency domain analysis. It analyzes 3D and multilayer structures
of general shapes. Thus, if the structure is simple like rectangular or circular means any regular
shape, IE3D would be the best. Defining the ports is easy in IE3D software. IE3D has full-3D
modeling for finite substrates and can handle many 3D problems. It has been widely used in the
design of MICs, RFICs, patch antennas, wire antennas, and other RF/wireless antennas. Various
parameters such as S11, VSWR, current distributions as well as the radiation patterns can be find
out.
Figure 1 shows the steps of the computer aided circuit design of microwave circuits. The circuit
analysis delivers the response function in terms of the component parameters, circuit topology,
and independent excitations. The circuit analysis delivers the response of the circuit, and the
result is compared with the design goals. If the agreement is not satisfying, then some relevant
circuit parameters have to be changed in an iterative way.
This design phase is termed as optimization. Optimization describes an iterative change of
network parameters, to obtain a specified circuit performance. It focuses on error minimization of
actually reached circuit data and the specified objective function.
The iterative procedure of circuit analysis, specification comparison, and optimization is
continued as long as the specifications have been met. Then the circuit is fabricated and
measured. If the measurement result is not satisfying, then further modifications must be
introduced. Such investigations are important to analyze the influence of processing tolerances on
the circuit properties [6].
L= 26.525 mm
Leff = 27.376 mm
4. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
40
Fig. 1 Flow chart of modern computer aided circuit design [6]
A. First Approach
Two square slots of size 5mm each side were cut. Along with that on the top right corner was cut
with dimension 2.52 mm and 4.52 mm. Here the position of microstrip line was at the standard
position. Size of defected ground was 13mm width and 30 mm length.
5. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
41
Fig. 2 Screen shot showing antenna with two slots and defected ground structure.
Here blue layer is for the conducting layer and green layer for the ground layer.
Fig. 3. Simulation showing return loss at 5 GHz frequency
Observed VSWR was 1.91 at 5 GHz instead of 3GHz frequency. So some other modification was
required.
B. Second Approach
Now here modification is done in two different plane i.e. on top plane and ground plane
separately. For top plane two square slots of size 5mm x 5mm are made on upper portion
Of the rectangular patch antenna. Also a rectangular slot is made at a distance of 16.75 mm from
top margin. Dimension of this slot is 1 mm x 12.75mm.
Ground plane is made defected. Here ground plane is shifted beneath the microstrip line feed with
dimension of 30.6 mm width and 26.525 mm length. A rectangular defected structure of
dimension 10 mm width and 18 mm length is made in the ground plane.
6. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
42
Fig. 4.Detail diagram showing different dimensions of top conducting plane.
Fig. 5.Dimensions of defected ground structure for the proposed antenna
7. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
43
Fig. 6.Simulation of return loss for proposed antenna
VSWR was found to be 1.65.
Fig. 7.Radiation pattern of antenna
Also the position of feed line was changed from centre to lower edge. This will help in impedance
matching helping to improve the performance of patch antenna. By changing the position of the
line feed location there occur variations in the impedance on smith chart. It also varies the return
loss of the antenna which affects the bandwidth of the antenna. Polarization is linear as feed was
not placed diagonal corner but lower corner of patch.
The notch or shape which cuts in the patch affects the antenna parameter. Here we cut the square
at both the radiating edge of the feed patch. The graph below shows the variation in return loss as
well as variation in the impedance of the antenna.
8. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
44
The value of S11 was good from the frequency 2.895 GHz to 3.105 GHz for which the value is
equal to -10 dB. So bandwidth in this case was 210 MHz. VSWR is a measure of how many
power is delivered to an antenna. This does not show that the antenna radiates all power it
receives. VSWR measures the potential to radiate. A low VSWR means the antenna is well-
matched.
4. MEASURED RESULTS
Figure shows photographs of fabricated proposed antenna.
Fig. 8.Photograph of top plane of antenna
Fig. 9.Photograph of bottom plane of antenna
9. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
45
Fig. 10.Measured S11 of proposed patch antenna
CONCLUSION
Modified design of patch antenna with defected ground structure (DGS) and slots on conducting
plane provides simulation results having return loss of -12.90 dB and VSWR of 1.62 for 3 GHz.
For 5 GHz value of return loss was -10.04 dB and VSWR of 1.91. This antenna can be operated
for various application ranges because of dual mode. Measured return loss was -12.71 dB. Also
very good results were found at 2.39 GHz frequency.
ACKNOWLEDGEMENT
Authors like to give their thanks to ‘Geetanjali Institute of Technical Studies’, Udaipur (Raj.),
India for the support.
REFERENCES
[1] Pozar, D. M., Microwave Engineering, 3rd edition, John Wiley & Sons, Inc 2004.
[2] Balanis, C.A., Antenna Theory, 3rd edition, John Wiley & Sons, Inc 2004.
[3] Chen, X. Q., X. W. Shi, Y. C. Guo, and C. M. Xiao, “A novel dual band transmitter using microstrip
defected ground structure,”Progress In Electromagnetics Research, PIER 83, 1–11, 2008.
[4] Oskouei, D., H. K. Forooraghi, and M. Hakak, “Guided and leaky wave characteristics of periodic
defected ground structures,” Progress In Electromagnetics Research, PIER 73, 15–27, 2007.
[5] Fooks, E. H. and R. A. Zakarevicius, Microwave Engineering Using Microstrip Circuits, Prentice
Hall, 1990.
[6] M. Wegmuller, J. P. von der Weid, P. Oberson, and N. Gisin, “High resolution fiber distributed
measurements with coherent OFDR,” in Proc. ECOC’00, 2000, paper 11.3.4, p. 109.
[7] H. Oraizi and M. S. Esfahlan,” Miniaturization of Wilkinson power Dividers by using defected
ground structure”, Progress In Electromagnetics Research Letters, Vol. 4, 113–120, 2008SR.
[8] ”Stripline – like Transmission Lines for Microwave Integrated Circuits”, Bharathi Bhat , Shiban K.
Koul
[9] J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2. Oxford: Clarendon,
1892, pp.68–73.
10. International Journal of Antennas (JANT) Vol.2, No.1, January 2016
46
Author’s Bibliography
Hitesh Joshi S/o Mr. D.S. Joshi is born on 12-10-1982. He completed his B. E in
Electronics and Communication Engineering from Rajasthan University, Jaipur,
India in year 2004, M.B.A. in HR from I.G.N.O.U. India in year 2009,M. Tech. in
VLSI Design from Mewar University, Chittorgarh, India in year 2012 and
Pursuing Ph. D. (Electronic and Communication) from Pacific University,
Udaipur, India. Presently he is working as Principal in Shri USB College of
Engineering & Management, Abu Road and Previously Principal in ,Shree
Sadguru Seva Mandal Polytechnic College, Abu Road and Associate Professor
and Asst. Prof at Gitanjali Institute of Technical Studies Udaipur, Maharishi
Arvind Institute of Engg. & Tech. Jaipur. His area of interests includes Antenna
Design, Body Antenna, Wireless Communication, Body Area Network, Body
centric wireless communication. He has more than 12 years Academic/Research
experience. He has guided several DST projects and dissertations in B. Tech and
M. Tech courses. He had published numerous International and National papers.
Ravindra Prakash Gupta S/o Mr. S.P. Gupta was born on 27-10-1973. He
completed his B. E in Electronics Engineering from Marathwada University,
Aurangabad in year 1998, M. Tech. in Electronic and Communication from
Malviya National Institute of Technology, Jaipur, India in year 2004 and Ph. D.
(Electronic and Communication) from Bhagwant University, Ajmer, India in year
2012 Presently he is working as Principal and Professor at Manda Institute of
Technology, Bikaner and previously at Maharishi Arvind College of Engineering
and Research, Sirsi Road, Jaipur. His area of interests includes Signal Processing,
Digital Communication, Wireless Communication, Wireless Sensor Networks,
Design of Computer Network. He has more than 16 years Academic/Research
experience. He has worked with the prestigious Military College of
Telecommunication Engineering, Mhow, Indore, India. He is a Life-Member of
Indian Society of Technical Education (ISTE), New Delhi and The Institution of
Electronics and Telecommunication Engineers (IETE), New Delhi.. He has guided
several projects and dissertations in B. Tech and M. Tech courses. He had published
numerous International papers in India and abroad and guiding Ph. D. research
scholars at reputed Universities. He has actively organized numerous National
Conferences in the field of Engineering, Applied Sciences, Energy and
Environment