A Wideband L-Probes Fed Circularly-Polarized Reconfigurable Microstrip Patch Antenna

Author

Yang, Shing-Lung Steven ; Luk, Kwai-Man

Author_Institution

Univ. of Mississippi, Jackson

Volume

56

Issue

2

fYear

2008

Firstpage

581

Lastpage

584

Abstract

A wideband circularly polarized reconfigurable microstrip patch antenna fed by L-shaped probes is presented. Right hand circular polarization and left hand circular polarization could be excited by L-shaped probes feeding a perturbed square patch. The L-shaped probes are connected to a switch which is fabricated underneath the ground plane, such that circularly polarized radiation pattern reconfiguration could be realized. An antenna prototype was fabricated and it attains a bandwidth of over 10% with both SWR < 2 and axial ratio < 3 dB.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; electromagnetic wave polarisation; microstrip antennas; antenna prototype; left hand circular polarization; radiation pattern reconfiguration; reconfigurable microstrip patch antenna; right hand circular polarization; wideband L-probes fed circular polarization; Antenna feeds; Antennas and propagation; Bandwidth; Broadband antennas; Geometry; Microstrip antennas; Patch antennas; Polarization; Probes; Switches; Broadband antennas; microstrip antennas; reconfigurable;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.915486

Filename

4447376