Design of S-Band Circularly Polarized Double-Layer Microstrip Antenna  

作　　者：李媛 赵方圆 郭嘉 张磊 

机构地区：[1]School of Electronic Information Engineering,Tianjin University [2]School of Communication Engineering,Jilin University

出　　处：《Transactions of Tianjin University》2012年第4期248-252,共5页天津大学学报（英文版）

基　　金：Supported by National Basic Research Program of China ("973" Program,No.2007CB310605)

摘　　要：This paper proposes a compact polarization microstrip antenna based on double-layer structure. The band- width of the whole antenna is widened by expanding the top and bottom layers respectively. After the design of antenna structure and adjustment of size, the proposed antenna can achieve both the left- and right-hand circular polariza- tions in 2.33 GHz--2.97 GHz. Measurement results indicate that the effective bandwidth is 640 MHz in S-band and the relative bandwidth can achieve 24% with S, less than- 15 dB.This paper proposes a compact polarization microstrip antenna based on double-layer structure.The bandwidth of the whole antenna is widened by expanding the top and bottom layers respectively.After the design of antenna structure and adjustment of size,the proposed antenna can achieve both the left-and right-hand circular polarizations in 2.33 GHz-2.97 GHz.Measurement results indicate that the effective bandwidth is 640 MHz in S-band and the relative bandwidth can achieve 24% with 11 S less than 15 dB.

关 键 词：double-layer microstrip antenna broadband antenna finite difference time domain circular polarization 

分 类 号：TN822[电子电信—信息与通信工程]