Polarization reconfigurable circular patch antenna with a C-Shaped

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

67 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Article number7782777
Pages (from-to)1388-1392
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume65
Issue number3
Publication statusPublished - 1 Mar 2017

Abstract

Polarization reconfigurable circular patch antenna with a C-shaped slot is proposed in this communication. It is demonstrated that by introducing a reconfigurable C-shaped slot in a circular patch antenna, the polarization of the radiation of the antenna, operating either in a linearly or circularly polarized mode, can be switched effectively. It is switched between vertical and horizontal polarizations for a linearly polarized mode and switched between left hand circularly polarization and right hand circularly polarization for a circularly polarized mode. The polarization reconfigurable characteristic is realized by controlling the states of the two switching diodes mounted over a concentric circular slot incorporated on the patch, so as to vary the orientation of the C-slot. Prototypes of both linear polarization and circular polarization designs were developed and the performances were validated against measurements. Both antennas exhibit over 20% impedance bandwidth (standing wave ratio (SWR) <2) and perform broadside radiation over the operating band. The 3-dB axial ratio bandwidth for the circularly polarized case is 4%.

Research Area(s)

  • Circular polarization (CP), microstrip antenna, patch antenna, polarization diversity, reconfigurable antennas

Citation Format(s)

Polarization reconfigurable circular patch antenna with a C-Shaped. / Mak, Ka Ming; Lai, Hau Wah; Luk, Kwai Man; Ho, Kin Lun.

In: IEEE Transactions on Antennas and Propagation, Vol. 65, No. 3, 7782777, 01.03.2017, p. 1388-1392.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review