Title :
Electronically Frequency-Reconfigurable Rectangular Dielectric Resonator Antennas
Author :
Desjardins, J. ; McNamara, D.A. ; Thirakoune, S. ; Petosa, A.
Author_Institution :
EECS, Univ. of Ottawa, Ottawa, ON, Canada
fDate :
6/1/2012 12:00:00 AM
Abstract :
The full implementation of a slot-fed frequency-reconfigurable rectangular dielectric resonator antenna (DRA) is described. It uses two conducting walls, on opposite vertical faces of the DRA, which are switched via conducting tabs to be in contact or not with the groundplane. Theoretical and experimental performance results for such DRAs, using either PIN or varactor diode switches, are described, where prototypes were designed to operate between 3-8 GHz. The PIN diode-loaded and varactor-loaded DRAs achieved a tuning range of 91% and 55%, respectively, with other performance metrics detailed in the communication.
Keywords :
antenna feeds; dielectric resonator antennas; p-i-n diodes; slot antennas; varactors; PIN diode switches; conducting walls; frequency 3 GHz to 8 GHz; frequency-reconfigurable resonator antenna; ground plane; rectangular dielectric resonator antennas; slot-fed antenna; varactor diode switches; Antenna measurements; Antennas; Integrated circuit modeling; PIN photodiodes; Resonant frequency; Tuning; Varactors; Dielectric resonator antennas; reconfigurable;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2194664
