Electronically scanned composite right/left handed microstrip leaky-wave antenna

被引：94

作者：

Lim, S ^{[1
]}

Caloz, C ^{[1
]}

Itoh, T ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2004年 / 14卷 / 06期

关键词：

composite right/left handed (CRLH) structure; electronical scanning; leaky-wave (LW) antenna; metamaterials;

D O I：

10.1109/LMWC.2004.828008

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 novel electronically scanned periodic microstrip leaky-wave (LW) antenna based on the concept of composite right/left-handed (CRLH) metamaterials is presented. This antenna includes varactors modulating the capacitive loading of the unit cell and therefore the propagation constant of the structure, which results in voltage scanning of the radiated beam. An accurate circuit model is proposed. The antenna is demonstrated experimentally to exhibit continuous scanning in the dominant mode from backward to forward angles. The scanning range is from -10degrees at 35 V to + 7.5degrees at 0 V, and broadside occurs at 9 V, at the fixed frequency of 3.23 GHz.

引用

页码：277 / 279

页数：3

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