Title :
A reconfigurable microstrip antenna for switchable polarization
Author :
Sung, Y.J. ; Jang, T.U. ; Kim, Y.-S.
Author_Institution :
Radio Sci. Eng. Dept., Korea Univ., Seoul, South Korea
Abstract :
A novel reconfigurable microstrip antenna with switchable polarization sense is proposed. The proposed antenna has a simple structure, consisting of a corner-truncated square radiating patch, four small triangular conductors, and a microstrip line feed. Using independently biased PIN diodes on the patch, it can produce linear polarization, or left- or right-hand circular polarization according to bias voltages. From the measured results, low cross-polarization levels when operated in the linear state and good axial ratios in the circular state are observed.
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; microstrip lines; p-i-n diodes; bias voltages; corner-truncated square radiating patch; independently biased PIN diodes; left-hand circular polarization; linear polarization; low cross-polarization levels; microstrip line feed; reconfigurable microstrip antenna; right-hand circular polarization; switchable polarization; triangular conductors; Antenna feeds; Antenna measurements; Capacitors; Communication switching; Conductors; Diodes; Geometry; Microstrip antennas; Mobile communication; Optical polarization; 65; Microstrip antenna; switchable polarization;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2004.837061
