Title :
Square patch antenna with switchable polarization using spur-line and PIN diode
Author :
Jang, Tai-Un ; Kim, B.Y. ; Sung, Young-Je ; Kim, Y.-S.
Author_Institution :
Dept. of Radio Sci. & Eng., Korea Univ., Seoul, South Korea
Abstract :
In this paper, a novel microstrip patch antenna for switchable polarization is presented. The proposed antenna has a simple structure, consisting of a square radiating patch, a pair of L-shape spur-line, and a microstrip feed line. It can produce either linear polarization or circular polarization by setting the diodes on or off. From the measured results, low cross polarization levels when operated in the linear polarization, and good axial ratio in the circular state have been observed.
Keywords :
microstrip antennas; microstrip lines; p-i-n diodes; polarisation; L-shape spur-line; PIN diode; circular polarization; linear polarization; low cross polarization levels; microstrip feed line; microstrip patch antenna; square patch antenna; square radiating patch; switchable polarization; Antenna feeds; Communication switching; Diodes; Frequency; Geometry; Microstrip antennas; Patch antennas; Polarization; Receiving antennas; Transmitting antennas; spur - line; switchable polarization;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606849
