Title :
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
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.915486
