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

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

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Original languageEnglish
Pages (from-to)581-584
Journal / PublicationIEEE Transactions on Antennas and Propagation
Issue number2
Publication statusPublished - Feb 2008


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.

Research Area(s)

  • Broadband antennas, Microstrip antennas, Reconfigurable