Nonreciprocal Phase-Shift Composite Right/Left Handed Transmission Lines and Their Application to Leaky Wave Antennas

被引：54
|
作者：
Ueda, Tetsuya [1 ]
Horikawa, Ken [1 ]
Akiyama, Masahiro [1 ]
Tsutsumi, Makoto [2 ]
机构：
[1] Kyoto Inst Technol, Dept Elect, Kyoto 6068585, Japan
[2] Fukui Univ Technol, Dept Space Commun Engn, Fukui 9108505, Japan
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2009年 / 57卷 / 07期
关键词：
Leaky wave antennas; metamaterials; nonreciprocal wave propagation; periodic structures; FERRITE; FIELD;
D O I：
10.1109/TAP.2009.2021889
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 new type of nonreciprocal phase-shift transmission line is proposed; it realizes the dominant right-handed mode in one direction of the power flow along the line, and the dominant left-handed mode in the opposite power direction. These right and left handed modes can have the same wave number vector at a specific frequency but there is no significant coupling effect. An equivalent circuit model is provided to explain its nonreciprocal transmission characteristics. A nonreciprocal phase-shift composite right/left handed transmission line is designed to satisfy specific performance parameters and fabricated as a ferrite microstrip line. The leaky wave radiation characteristics of the fabricated nonreciprocal line are investigated. An experiment and analyses confirm obliquely unidirectional leaky wave radiation from the line for the two different directions of the transmitted power.
引用
收藏
页码：1995 / 2005
页数：11
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