Gain and Bandwidth Enhancement of a Spiral Antenna Using a Circularly Symmetric HIS

被引：39

作者：

Amiri, Mikal Askarian ^{[1
]}

Balanis, Constantine A. ^{[1
]}

Birtcher, Craig R. ^{[1
]}

机构：

[1] Arizona State Univ, Sch Elect Comp & Energy Engn, Tempe, AZ 85287 USA

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

关键词：

Circular high-impedance surface (HIS); low-profile design; spiral antenna; wideband balun; wideband element;

D O I：

10.1109/LAWP.2016.2622222

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 circularly symmetric high-impedance surface (HIS) is used as a ground plane in the design of a low-profile two-arm spiral antenna. It is shown through simulations that an HIS with circular periodicity provides 16% and 11.3% greater operational and fractional bandwidths, respectively, for spiral antennas compared to canonical rectangular HISs. It is also observed that with the aid of a circular HIS ground plane, the gain of the spiral antenna increases for 2.5 dB compared to when a rectangular HIS is used as a ground plane. Measurements are performed to validate the simulations; a very good agreement is indicated.

引用

页码：1080 / 1083

页数：4

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