Reconfigurable front-end antennas for cognitive radio applications

被引：46
|
作者：
Tawk, Y. [1 ]
Bkassiny, M. [1 ]
El-Howayek, G. [1 ]
Jayaweera, S. K. [1 ]
Avery, K. [2 ]
Christodoulou, C. G. [1 ]
机构：
[1] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA
[2] USAF, Res Lab, Space Vehicles Directorate, Kirtland AFB, NM USA
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2011年 / 5卷 / 08期
关键词：
D O I：
10.1049/iet-map.2010.0358
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 study presents new antenna schemes suitable for cognitive radio communications. The antenna structures consist of a ultra wide band (UWB) sensing antenna, and a frequency reconfigurable communicating antenna both incorporated into the same substrate. Two different techniques to achieve the required frequency agility are proposed. The first one is based on a rotational motion of the radiating patch whereas the second is based on optical switching. The importance of these techniques is that no bias lines are needed as is seen in the case of RF MEMs, PIN diodes and lumped elements. Prototype antennas were fabricated and a good agreement was observed between the simulated and the measured data.
引用
收藏
页码：985 / 992
页数：8
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