Dual-Band Electronically Beam-Switched Antenna Using Slot Active Frequency Selective Surface
Dual-Band Electronically Beam-Switched Antenna Using Slot Active Frequency Selective Surface
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DOI：
10.1109/tap.2016.2647578
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发表时间：
2017-03-01
影响因子：
5.7
通讯作者：
Xu, Jiadong
中科院分区：
文献类型：
--
作者：
Gu, Chao;Izquierdo, Benito Sanz;Xu, Jiadong
本文提出了一种基于圆柱形有源频率选择表面（AFSS）的电子波束切换天线，它可以工作在两个不同的频段。该天线由一个缝隙AFSS和一个全向双频馈电天线组成。AFSS的p-i-n二极管可以被接通或关断以分别将AFSS重新配置为对入射电磁波透明或不透明。因此，通过控制不同列p-i-n二极管的直流偏置电压，天线的定向波束可以被扫描以覆盖整个方位平面。为了验证设计概念，主动FSS片的传输系数进行了实验研究。工作在2.5和5.3 GHz频段的天线原型也制造和测量。天线的仿真和测量结果验证了设计原理。这种通信和其他最近的设计之间的比较。该天线具有低功耗、低成本、易制作、波束切换覆盖360度角范围等优点。
This communication presents an a cylindrical active frequency selective surface (AFSS)-based electronically beam-switching antenna, which can operate at two different frequency bands. The antenna consists of a slot AFSS and an omnidirectional dual-band feed antenna. The p-i-n diodes of the AFSS can be switched on or off to reconfigure the AFSS as transparent or opaque to the incident electromagnetic waves, respectively. Thus, by controlling the dc bias voltages to different columns of p-i-n diodes, the directive beams of the antenna can be swept to cover the whole azimuth plane. To validate the design concept, the transmission coefficients of the active FSS sheet are experimentally examined. An antenna prototype operating at 2.5 and 5.3 GHz frequency bands is also fabricated and measured. Simulation and measurement results of the antenna are presented to verify the design principle. A comparison between this communication and other recent designs is provided. The antenna has advantages of low power, low cost, easy fabrication, and electronic beam switching covering a full 360 degrees angular range.