Title :
Circularly-Polarized DRA-Slot Hybrid Antenna for Dualband Applications
Author :
Ding, Y. ; Leung, K.W. ; Luk, K.M.
Author_Institution :
City Univ. of Hong Kong, Hong Kong
Abstract :
A dielectric resonator antenna (DRA) is placed on top of an L-probe-fed slotted cavity to form a circularly polarized (CP) hybrid antenna. The zonal slot is perturbed to excite CP fields in the lower band, whereas the DRA located on top of the cavity is fed by an inclined slot to excite CP fields in the upper band. Ansoft HFSS was used to simulate the proposed configuration. The return loss, axial ratio and radiation pattern are presented.
Keywords :
antenna radiation patterns; dielectric resonator antennas; multifrequency antennas; slot antennas; L-probe-fed slotted cavity; axial ratio; circularly polarized hybrid antenna; dielectric resonator antenna; radiation pattern; return loss; zonal slot; Antenna radiation patterns; Dielectric constant; Dielectric resonator antennas; Dual band; Feeds; Log periodic antennas; Microstrip; Polarization; Slot antennas; Transmitters;
Conference_Titel :
Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-0767-5
Electronic_ISBN :
978-1-4244-0767-5
DOI :
10.1109/ICEAA.2007.4387445
