Dual-band electronically beam-switched antenna using slot active frequency selective surface

Chao Gu*, Benito Sanz Izquierdo, Steven Gao, John C. Batchelor, Edward A. Parker, Fan Qin, Gao Wei, Jianzhou Li, Jiadong Xu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

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° angular range.

Original languageEnglish
Article number7805201
Pages (from-to)1393-1398
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number3
Early online date04 Jan 2017
DOIs
Publication statusPublished - 01 Mar 2017

Keywords

  • Dual-band antenna
  • electronically beam-steering antenna
  • frequency selective surface (FSS)
  • reconfigurable antenna (RA)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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