Title :
A novel patch antenna with switchable slot (PASS): dual-frequency operation with reversed circular polarizations
Author :
Jin, Nanbo ; Yang, Fan ; Rahmat-Samii, Yahya
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA
fDate :
3/1/2006 12:00:00 AM
Abstract :
In this paper, the recently proposed patch antenna with switchable slot (PASS) concept is implemented to design a novel reconfigurable antenna with both frequency and polarization diversities. Using only one switch and a single patch, the antenna operates at 4.20 GHz with right-handed circular polarization and at 4.55 GHz with left-handed circular polarization. The fabricated antenna has both an acceptable return loss and a broadside axial ratio (AR) lower than 2 dB at each operation frequency. The frequency and polarization diversities of this design could potentially improve the reliability of wireless communication systems
Keywords :
diversity reception; electromagnetic wave polarisation; microstrip antennas; microwave antennas; multifrequency antennas; radiocommunication; slot antennas; 4.20 GHz; 4.55 GHz; PASS; broadside axial ratio; circular polarization diversity; dual-frequency operation; patch antenna-switchable slot; reconfigurable antenna fabrication; wireless communication system; Coaxial components; Communication switching; Current; Frequency diversity; Patch antennas; Polarization; Schottky diodes; Slot antennas; Switches; Wireless communication; Circular polarization; dual-frequency; patch antenna; reconfigurable antenna; switchable slot;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.869939
