Motion-Activated Reconfigurable and Cognitive Radio Antenna Systems

被引：9
|
作者：
Costantine, Joseph [1 ]
Tawk, Youssef [2 ]
Christodoulou, Christos G. [2 ]
机构：
[1] Calif State Univ Fullerton, Dept Elect Engn, Fullerton, CA 92834 USA
[2] Univ New Mexico, Configurable Space Microsyst Innovat & Applicat C, Albuquerque, NM 87131 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词：
Cognitive radio; infrared; motion detection; reconfigurable antennas; varactor;
D O I：
10.1109/LAWP.2013.2280427
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：
In this letter, we present a new technique to control reconfigurable and cognitive radio antenna systems. For both cases, the control is done by sensing a movement in the antenna surroundings. This surrounding awareness ability is achieved by incorporating an infrared (IR) motion detector with the antenna system. Once a movement is detected, the IR sensor generates a voltage that can be used to activate the biasing network of a reconfiguring element on an antenna structure. This concept is first tested on a varactor-based reconfigurable antenna. Then, a modified version of the circuit is used to control a cognitive radio antenna system that consists of a reconfigurable antenna and a wideband sensing antenna.
引用
收藏
页码：1114 / 1117
页数：4
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