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IJRSP Vol.40(4) [August 2011] >

Title: Design of circularly polarized edge truncated elliptical patch antenna with improved performance
Authors: Sekra, Pratibha
Shekhawat, Sumita
Dubey, Manoj
Bhatnagar, D
Saxena, V K
Saini, J S
Keywords: Elliptical patch antenna
Circularly polarized antenna
Microstrip antenna
Issue Date: Aug-2011
Publisher: NISCAIR-CSIR, India
PACS No.: 84.40.Ba
Abstract: The performance of a circularly polarized edge truncated elliptical patch microstrip antenna has been investigated experimentally in free space and has been compared with the performance of a conventional elliptical patch antenna. Extensive optimizations in feed locations and in edge lengths along major and minor axes of conventional elliptical patch antenna have been carried out to achieve best performance from modified elliptical patch geometry. In addition to circular polarization, proposed antenna presents impedance bandwidth close to 180 MHz or 6.54%. With proposed feed arrangement, right circular polarization with axial ratio 0.9 dB at frequency 2.751 GHz is realized and axial ratio bandwidth close to 2.17% has been achieved. The gain of proposed antenna is lower than desired value for modern communication systems. In entire bandwidth, the radiation patterns are identical in shape.
Page(s): 227-233
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-105X (Online); 0367-8393 (Print)
Source:IJRSP Vol.40(4) [August 2011]

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