Title :
Beam scannable patch array antenna employing tunable metamaterial phase shifter
Author :
Jung, Youn-Kwon ; Lee, Bomson
Author_Institution :
Dept. of Electron. & Radio Eng., Kyung Hee Univ., Yongin, South Korea
Abstract :
A beam scannable 4-patch array antenna using three tunable metamaterial (MTM) phase shifter has been designed and simulated. For this work, a shunt inductor required for a MTM unit cell is realized by a chip varactor and a quarter wave impedance transformer. The proposed phase shifter consists of four meta-unit cells. The phase shifting range of the tunable MTM phase shifter is about 140 °. The 10 dB bandwidth and the maximum gain of the antenna are 14 MHz and 12.7 dBi, respectively. The scanning range of the antenna is about 43 °.
Keywords :
impedance convertors; inductors; metamaterials; microstrip antenna arrays; microwave phase shifters; scanning antennas; varactors; MTM unit cell; antenn again; antenna scanning range; bandwidth 14 MHz; beam scannable 4-patch array antenna; chip varactor; phase shifting range; quarterwave impedance transformer; shunt inductor; tunable MTM phase shifter; tunable metamaterial phase shifter; Antenna arrays; Arrays; Impedance; Metamaterials; Phase shifters; Varactors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349278
