3-D Coverage Beam-Scanning Antenna Using Feed Array and Active Frequency-Selective Surface

Chao Gu*, Steven Gao, Benito Sanz-Izquierdo, Edward A. Parker, Fan Qin, Hang Xu, John C. Batchelor, Xuexia Yang, Zhiqun Cheng

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)
59 Downloads (Pure)

Abstract

This paper presents the design of a smart antenna that can achieve 3-D beam-scanning coverage. The antenna consists of a novel planar feed array and a cylindrical active frequency-selective surface (AFSS). First, an array fed metallic reflector is studied as a reference antenna to validate the beam-scanning characteristics in the elevation plane. Then, the AFSS is assessed through simulation and measurement results. Finally, the complete structure containing the planar collinear array and the AFSS is analyzed. A prototype at S-band has been designed, manufactured, and measured. The resulting antenna is shown to be able to operate at the 2.4-2.5 GHz frequency band and switch beams in both the azimuth and elevation planes. In the azimuth plane, the proposed antenna is capable of sweeping beams toward different directions to cover a full range of 360°. In the elevation plane, it can achieve beam steering within an angle range of +16°/ - 15°. The measured maximum gain of the antenna is 9.2 dBi. This is the first report of a low-cost 3-D coverage beam-scanning antenna based on AFSS.

Original languageEnglish
Article number8052527
Pages (from-to)5862-5870
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number11
DOIs
Publication statusPublished - 28 Sep 2017

Keywords

  • 3-D beam switching
  • electronically beam-steering antennas
  • frequency-selective surface (FSS)
  • reconfigurable antennas
  • smart antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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