Gain enhancement of wideband circularly polarized antenna using FSS

被引：8
|
作者：
Kushwaha, Nagendra [1 ]
Kumar, Raj [2 ]
机构：
[1] DIAT DU, Dept Elect Engn, Pune 411025, Maharashtra, India
[2] ARDE, Dept Armament Elect, Pune 411021, Maharashtra, India
来源：
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2017年 / 9卷 / 03期
关键词：
Circular polarization antenna; CPW-fed antenna; FSS; High gain antenna; Reflector; Wideband antenna; DESIGN;
D O I：
10.1017/S1759078716000519
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：
This paper presents a high gain, wideband circularly polarized (CP) antenna. High gain of the antenna is achieved by employing a frequency selective surface (FSS) as a reflector. The antenna is a coplanar waveguide-fed structure with a modified L-shaped radiating patch. The unit element of the FSS is formed by connecting two modified dipoles at an angle of 90 degrees. The antenna with reflector has a measured impedance bandwidth of 74.3% (2.2-4.8 GHz) and a 3-dB axial ratio bandwidth (ARBW) of 62% (2.2-4.18 GHz). The maximum boresight gain of the proposed antenna with reflector is 7.1 dB at 3.4 GHz. The radiation patterns of the antenna with the FSS are also measured and compared with simulated patterns. The various aspects of effect of FSS on CP antenna performance are also discussed.
引用
收藏
页码：697 / 703
页数：7
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