Compact FIN defected ground structure for improved cross polarisation in array antenna

被引：0
作者：
Khouser, Husna G. [1 ]
Choukiker, Yogesh Kumar [1 ]
机构：
[1] Vellore Inst Technol, Sch Elect Engn, Vellore, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS | 2023年 / 110卷 / 01期
关键词：
Polarisation; defected ground structure; microstrip antenna; array; MICROSTRIP ANTENNA; PATCH ANTENNA; RADIATION; SUPPRESSION; MODEL; GAIN;
D O I：
10.1080/00207217.2021.2021557
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：
In this article, a 2 x 2 microstrip array antenna integrated with FIN defected ground structure (DGS) is investigated, which is designed for 3.24 GHz band operation. The FIN-DGS has been etched from the ground plane in the H-plane direction between two contiguous elements in a symmetric manner. Therefore, it suppresses the cross-polarisation (XP) radiation in the antenna without affecting its co-polarisation (CP) radiation characteristics. A proposed antenna has been designed and experimentally verified and shows <35 dB XP (+/- 50o) radiation around boresight of the radiating elements in the H-plane with 10.7 dBi gain. The variation of XP fields has been investigated using the modal field distribution. The designed antenna provides a wide range of applications in adaptive arrays and space antennas, where 3D coverage with decreased XP values is the primary constraint.
引用
收藏
页码：169 / 183
页数：15
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