Frequency-Scanning Phased-Array Feed Network Based on Composite Right/Left-Handed Transmission Lines

被引：21

作者：

Choi, Jun H. ^{[1
]}

Sun, Jim S. ^{[1
]}

Itoh, Tatsuo ^{[1
]}

机构：

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

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2013年 / 61卷 / 08期

关键词：

Antenna array; composite right/left-handed (CRLH); feed network; frequency scanning; phased array; quasi-Yagi antenna; LEAKY-WAVE; ANTENNA;

D O I：

10.1109/TMTT.2013.2263508

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 an all-passive phased-array feed network based on composite right/left handed (CRLH) transmission lines (TLs). A CRLH TL enables systematic engineering of the phase response providing phase advance in addition to phase delay. When utilized in a phased-array feed network, an all-passive 1-D frequency-scanning array can be designed with a large scanning angle range toward both positive and negative elevation angles. This unique feature cannot be realized using conventional delay lines or dispersive lines that do not contain left-handed properties. Also, unlike the previously studied CRLH-based leaky-wave antennas that provide similar 1-D continuous frequency-scanning functionality, the proposed method completely decouples the radiating antenna element from the array factor; thereby providing extra design freedom and enhanced radiation performance. To validate the added advantage, we use the proposed CRLH-based phased-array feed network to demonstrate simultaneous controllability of the radiated polarization and array current amplitude distribution.

引用

页码：3148 / 3157

页数：10

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