Title :
Reconfigurable Patch Antenna for Polarization Diversity
Author_Institution :
Dept. of Electron. Eng., Kyonggi Univ., Suwon
Abstract :
A novel design of patch antennas with polarization diversity is proposed and experimentally studied in this letter. A pair of L-type slits is embedded into the edge of square patch and the shape of the slit is changed according to on- or off-state of PIN diode. Therefore, the proposed patch antenna has different polarizations. The novel structure we describe here enables the optimization of the input match for both polarizations. From the measured result, low cross-polarization levels in the linear state and good axial ratios in the circular state are observed.
Keywords :
diversity reception; microstrip antennas; p-i-n diodes; polarisation; L-type slits; PIN diode; circular state; cross-polarization levels; linear state; reconfigurable patch antenna; square patch; switchable polarization diversity; Antenna measurements; Circuits; Diodes; Frequency; Log periodic antennas; Microstrip antennas; Patch antennas; Polarization; Satellite communication; Shape; Patch antenna; switchable polarization diversity;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.928810
