volume | PIER Journals

2014-05-03

Dual-Band Dual-Polarized Spiral Antenna for Chinese Compass Navigation Satellite System

Hangying Yuan,

Dr. Hangying Yuan

College of Science

Air Force Engineering University

China

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Shaobo Qu,

Prof. Shaobo Qu

College of Science

Air Force Engineering University

China

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Jieqiu Zhang,

Professor Jieqiu Zhang

College of Science

Air Force Engineering University

China

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Hang Zhou,

Dr. Hang Zhou

The College of Science

Air Force Engineering University

China

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Jiafu Wang,

Professor Jiafu Wang

Air Force Engineering University

China

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Hua Ma,

Dr. Hua Ma

College of Science

Air Force Engineering University

China

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Zhuo Xu

Prof. Zhuo Xu

School of Information and Electronics Engineering

Xi'an Jiaotong University

China

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Progress In Electromagnetics Research Letters, Vol. 46, 25-30, 2014

doi:10.2528/PIERL14031006

Abstract

In Chinese Compass Navigation Satellite System (CNSS for short), dual-band antennas are more attractive, because they can provide both navigation and communication services. In this paper, we present a dual-band dual-circular-polarized planar spiral-slot CNSS antenna. This antenna works at L Band (1616±5 MHz, left-handed circular polarization, LHCP) and S Band (2492±5 MHz, right-handed circular polarization, RHCP). Numerical results show that the impedance bandwidth (S₁₁<-10 dB), 3 dB axial ratio bandwidth and antenna gain at L Band are about 242 MHz, 79 MHz and 4.92 dB, respectively, while the simulated impedance bandwidth (S₁₁<-10 dB), 3dB axial ratio bandwidth and antenna gain at S Band are about 180 MHz, 58 MHz and 5.25 dB, respectively. An experiment was carried out to verify our design. Measured results show that impedance bandwidth (S₁₁<-10 dB) and 3 dB axial ratio bandwidth L Band are about 300 MHz and 14 MHz, respectively, while the measured impedance bandwidth (S₁₁<-10 dB) and 3 dB axial ratio bandwidth at S Band are about 210 MHz, 10 MHz, respectively. The measured results basically agree with the simulated ones and meet the requirement of CNSS terminal antennas.

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Hangying Yuan, Shaobo Qu, Jieqiu Zhang, Hang Zhou, Jiafu Wang, Hua Ma, and Zhuo Xu, "Dual-Band Dual-Polarized Spiral Antenna for Chinese Compass Navigation Satellite System," Progress In Electromagnetics Research Letters, Vol. 46, 25-30, 2014.
doi:10.2528/PIERL14031006

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