Design of circularly polarized planar monopole antenna with improved axial ratio bandwidth

被引：3
|
作者：
Rekha, S. [1 ]
Nesasudha, M. [1 ]
机构：
[1] Karunya Univ, Dept Elect & Commun Engn, Coimbatore, Tamil Nadu, India
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2017年 / 59卷 / 09期
关键词：
beam steering; circular polarization; impedance bandwidth and axial ratio bandwidth; monopole antenna; GROUND-PLANE; BAND;
D O I：
10.1002/mop.30733
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 Microstrip fed circularly polarized monopole antenna is been designed at a frequency from 3.5 to 8 GHz. It has a stub and a slit placed orthogonally in its ground layer to facilitate circular polarization. This antenna has 10 dB impedance bandwidth (return loss<-10 dB) of 75% (3.5-8 GHz) and 3 dB axial ratio (AR<3 dB) bandwidth of 8.61% (4.016-4.38 GHz). The ground layer is shaped and extended in a parabolic manner to one end of ground to form beam steering and good directional pattern. It is found that the axial ratio bandwidth is increased to 21.42% (4.375-5.425 GHz) with good pattern steering.
引用
收藏
页码：2353 / 2358
页数：6
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