Wideband Circularly Polarized Antenna Using Metasurface

被引：0

作者：

Zhou, C. F. ^{[1
]}

Cheung, S. W. ^{[1
]}

Cao, Y. F. ^{[1
]}

Yuk, T. I. ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2016年

关键词：

circularly polarized antenna; metamaterial transmission line; wideband axial-ratio bandwidth; metasurface; PATCH;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A wideband circularly polarized (CP) antenna with a compact size of 0.64 lambda(0)x0.64 lambda(0)x0.27 lambda(0) operating at the frequency of 2 GHz is presented. The antenna consists of a 4-way power divider, a patch antenna and a metasurface (MS). The input signal is fed to the 4-way power divider and the signals at the outputs of the 4-way power divider are coupled to a patch antenna using 4 orthogonally oriented L-shape probes. The MS is designed to work with the antenna. The CP antenna is studied and designed using computer simulation. Results show that, the MS can improve the axial ratio bandwidth (ARBW), boresight co-polarization gain and cross-polarization of the patch antenna. The CP antenna, with the use of the MS, has a very wide impedance bandwidth (IMBW) of 1.06-3.21 GHz (100.7%) and ARBW of 1.2-3.11 GHz (88.6%), which are larger than those of all other designs found in literature, yet having the smallest size.

引用

页数：4

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