Title :
Dual frequency reconfigurable microstrip antenna using varactor diodes
Author :
Nishamol, M.S. ; Aanandan, C.K. ; Mohanan, P. ; Vasudevan, K.
Author_Institution :
Dept. of Electron., CUSAT, Cochin, India
Abstract :
A varactor controlled electronically reconfigurable dual frequency microstrip antenna is presented. Dual frequency operation is realized by embedding an X-slot in a rectangular patch. High tuning ranges of 26.3% and 15.3% are realized for the two resonant frequencies respectively, when the bias voltage is varied from 0 to 16V. This design has an added advantage of size reduction up to 77% and 64% for the two resonant frequencies compared to standard rectangular patch. A maximum band width of 2.26% and 2.36% for the two frequencies with an operating frequency ratio varying in the range 1.156 to 1.279 is observed.
Keywords :
UHF antennas; microstrip antennas; multifrequency antennas; varactors; UHF antennas; X-slot; dual frequency reconfigurable microstrip antenna; frequency 1.156 GHz to 1.279 GHz; rectangular patch; varactor diodes; voltage 0 V to 16 V; Antenna measurements; Antenna radiation patterns; Microstrip antennas; Resonant frequency; Tuning; Varactors;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050298
