Ring-Resonator-Inspired Power Recycling Scheme for Gain-Enhanced Distributed Amplifier-Based CRLH-Transmission Line Leaky Wave Antennas

被引：29

作者：

Wu, Chung-Tse Michael ^{[1
]}

Dong, Yuandan ^{[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 | 2012年 / 60卷 / 04期

基金：

美国国家科学基金会;

关键词：

Active antenna; composite right/left handed transmission lines (CRLH-TLs); distributed amplifiers (DAs); leaky wave antennas (LWAs); power recycling;

D O I：

10.1109/TMTT.2012.2183610

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：

We propose a novel power recycling scheme for distributed amplifiers (DAs) integrated with composite-right/left handed transmission line leaky wave antennas (LWAs). This new type of power recycling scheme is essentially inspired by a ring-resonator. By forming a closed-loop on the drain side LWA of the DA, we create the ring-resonator that is actively coupled by the DA from the gate line and hence can obtain a substantial gain enhancement compared to the one directly terminated without the loop. Such enhancement fluctuates with respect to the frequency. At the resonant frequencies of the closed-loop ring-resonator, the enhancement reaches a maximum. The phenomenon will be explained and derived theoretically in detail, and then validated through the real implementation.

引用

页码：1027 / 1037

页数：11

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