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

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

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...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2008-02, Vol.56 (2), p.581-584
Hauptverfasser: YANG, Shing-Lung Steven, LUK, Kwai-Man
Format: Artikel
Sprache:eng
Schlagworte:
Antenna feeds
Antennas
Antennas and propagation
Applied sciences
Bandwidth
Broadband antennas
Circular polarization
Circularity
Exact sciences and technology
Feeding
Geometry
Ground plane
Microstrip antennas
Patch antennas
Polarization
Probes
Radiocommunications
reconfigurable
Switches
Telecommunications
Telecommunications and information theory
Wideband
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Beschreibung
Zusammenfassung: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.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2007.915486