A circularly polarized microstrip antenna using a coplanar-waveguide feed with an inset tuning stub

被引：0
|
作者：
Huang, CY [1 ]
机构：
[1] Yung Ta Inst Technol, Dept Elect Engn, Pingtung 909, Taiwan
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2001年 / 28卷 / 05期
关键词：
coplanar waveguide; microstrip antenna; circular polarization;
D O I：
10.1002/1098-2760(20010305)28:5<311::AID-MOP1027>3.0.CO;2-2
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 new design of a coplanar-waveguide (CPW) feed for the excitation of a circularly polarized microstrip antenna is proposed. The proposed CPW feed has a 45 degrees -inclined coupling slot and an inset tuning stub. Through the coupling slot, the electromagnetic energy can be coupled from the CPW feed line to the radiating patch, and fine tuning of good impedance matching is achieved by insetting a proper length of the tuning stub into the signal strip of the CPW feed line, resulting in a compact feed circuitry. By applying the proposed CPW feed to a circular patch with a bent tuning stub, a circularly polarized microstrip antenna can be achieved. Details of the antenna design and experimental results are presented and discussed. (C) 2001 John Wiley & Sons, Inc.
引用
收藏
页码：311 / 312
页数：2
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