A simple and robust adaptive parasitic antenna

被引:34
作者
Migliore, MD [1 ]
Pinchera, D [1 ]
Schettino, F [1 ]
机构
[1] Univ Cassino, Microwave Lab, DAEIMI, I-03043 Cassino, Italy
关键词
adaptive antennas; evolutionary algorithms; fuzzy logic; genetic algorithms; particle swarm optimization; switched parasitic array;
D O I
10.1109/TAP.2005.856361
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 Uda-Yagi adaptive antenna is numerically and experimentally investigated. The antenna consists of an active element and a relatively large number of parasitic elements closed on two different loads selectable by simple electronic switches. The use of fuzzy-logic based cost function and self-adaptive biological beamforming algorithms allows to obtain quite good performances both in terms of signal to interference plus noise ratio and voltage standing wave ratio. The antenna is simple, low cost, and is robust with respect to mechanical and electrical tolerances and with respect to failures of some passive elements. Experimental results on two different prototypes confirm the good performances of the proposed antenna.
引用
收藏
页码:3262 / 3272
页数:11
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