Dual-Band Full-Space Scanning Leaky-Wave Antenna Based on Ferrite-Loaded Open Waveguide

被引：18
|
作者：
Kodera, Toshiro [1 ]
Caloz, Christophe [1 ]
机构：
[1] Ecole Polytech, Dept Elect & Engn, Montreal, PQ H2T 1J3, Canada
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Composite right/left-handed (CRLH) mode; dual-band operation; edge-guided mode; ferrite; full-space scanning; leaky-wave antenna; mixed forward/backward mode; waveguide structure;
D O I：
10.1109/LAWP.2009.2035828
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 dual-band full-space scanning leaky-wave antenna based on a ferrite-loaded open waveguide structure is proposed. The lowest three bands of this structure are: the composite right/left-handed (CRLH) mode with positive group velocity first reported recently, the traditional isolator edge-guided mode, and a mixed forward/backward perturbed waveguide mode with a negative group velocity in its leaky-wave region. The leaky-wave regions of the CRLH and of perturbed waveguide modes are exploited to provide dual-band radiation. Due to their opposite group velocities, the two modes have their ports placed at both ends of the structure, which allows independent matching sections and also avoids the necessity of a diplexer. The antenna was demonstrated by both full-wave simulation and by experiment.
引用
收藏
页码：1202 / 1205
页数：4
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