volume | PIER Journals

2009-09-18

Compact Circularly Polarized Microstrip Antenna with Wide Beamwidth for Compass Satellite Service

Jing-Ya Deng,

Prof. Jing-Ya Deng

Xidian University

China

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Ying-Zeng Yin,

Professor Ying-Zeng Yin

Xidian University

China

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You-Huo Huang,

Dr. You-Huo Huang

Xidian University

China

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Jie Ma,

Dr. Jie Ma

Xidian University

China

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Qi-Zhong Liu

Professor Qi-Zhong Liu

Xidian University

China

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Progress In Electromagnetics Research Letters, Vol. 11, 113-118, 2009

doi:10.2528/PIERL09080801

Abstract

A compact circularly polarized (CP) microstrip antenna with inserted nine cross slots is proposed to reduce the size and widen the beamwidth. The antenna is operated at 1.268 GHz, and built by using a substrate with a coaxial probe feed. The impedance bandwidth (VSWR < 2) is 1.5% and the 3 dB axial ratio bandwidth is 0.52%. The measure gain is 4.5 dBi and beamwidth is about 110^o. The measured results for the compact CP antenna with embedded cross slots size shows that the resonate frequency is significantly lowered from 1.951 GHz to 1.268 GHz, corresponding to a 35% antenna size reduction compared with the one without any slot.

Citation

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Jing-Ya Deng, Ying-Zeng Yin, You-Huo Huang, Jie Ma, and Qi-Zhong Liu, "Compact Circularly Polarized Microstrip Antenna with Wide Beamwidth for Compass Satellite Service," Progress In Electromagnetics Research Letters, Vol. 11, 113-118, 2009.
doi:10.2528/PIERL09080801

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