Title :
Cavity backed annular slot ring antenna with reconfigurable slots using VO2
Author :
Rodriguez-Solis, Rafael A. ; Saade, Youssef M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Puerto Rico, Mayaguez, Puerto Rico
Abstract :
A cavity-backed annular slot-ring antenna with reconfigurable VO2 shorts is designed to take advantage of the insulator-to-metal transition of the material. By selectively activating the shorts, the antenna presents a change in resonant frequencies from 6.3 GHz, when no shorts are active, to 8.25 GHz, when the short located at 80 degrees from the feed point is active. The antenna gain varies from 1 to 5.5 dBi for the different operating states.
Keywords :
loop antennas; metal-insulator transition; microwave antennas; slot antennas; vanadium compounds; VO2; cavity-backed annular slot-ring antenna; feed point; frequency 6.3 GHz to 8.25 GHz; insulator-to-metal transition; reconfigurable VO2 shorts; resonant frequencies; Bandwidth; Cavity resonators; Feeds; Gain; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710949
