Wideband ±45° polarization reconfigurable aperture-fed patch antenna

Wei Lin, Hang Wong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This paper introduces a wideband aperture-fed patch antenna with ± 45° reconfigurable polarizations. A new method is proposed to achieve the switchable ± 45° polarizations by designing a reconfigurable feeding aperture for a square radiating patch. To realize this, we introduce four PIN diodes as RF switches connected between a cross feeding aperture such that the orthogonal directions of the rectangular aperture can be controllable. As the result, ± 45° polarizations can be reconfigured since the polarization is determined by the direction of the feeding aperture. In order to widen the bandwidth of a single patch antenna, we introduce a parasitic patch above the main radiating patch to bring an additional resonance. The bandwidth of the double-patch structure can reach 21% which is much wider than that of a single patch. In addition, the antenna has a stable gain across the operating bandwidth with the peak gain of 9.6 dBi. Good broadside radiation patterns are obtained with the 3-dB beamwidth of 56 degree. The antenna is suitable for applications requiring wideband and polarization reconfigurable characteristics.

Original languageEnglish
Title of host publication2015 International Symposium on Antennas and Propagation, ISAP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9784885523038
Publication statusPublished - 4 Apr 2016
Externally publishedYes
EventInternational Symposium on Antennas and Propagation, ISAP 2015 - Hobart, Australia
Duration: 9 Nov 201512 Nov 2015

Publication series

Name2015 International Symposium on Antennas and Propagation, ISAP 2015

Conference

ConferenceInternational Symposium on Antennas and Propagation, ISAP 2015
Country/TerritoryAustralia
CityHobart
Period9/11/1512/11/15

Keywords

  • aperture-fed patch antenna
  • reconfigurable antennas
  • wideband

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Radiation
  • Electrical and Electronic Engineering

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