Title :
Experimental study of wideband hybrid dielectric resonator antenna on small ground plane
Author :
Gao, Y. ; Popov, A.P. ; Ooi, B.L. ; Leong, M.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
fDate :
6/22/2006 12:00:00 AM
Abstract :
A wideband hybrid dielectric resonator antenna (DRA) is investigated experimentally. The proposed hybrid DRA comprises a rectangular dielectric resonator and a conductor-backed coplanar waveguide (CB-CPW) slot etched on a small ground plane. Dual resonances of the two radiators are merged to expand the antenna bandwidth. By utilising the CB-CPW structure, a back-cavity is formed underneath the slot to suppress the backward radiation. Hence consistent unidirectional radiation pattern is achieved across the matching band.
Keywords :
antenna radiation patterns; broadband antennas; coplanar waveguides; dielectric resonator antennas; slot antennas; CB-CPW structure; antenna bandwidth; back-cavity; backward radiation; conductor-backed coplanar waveguide; dielectric resonator antenna; hybrid DRA; rectangular dielectric resonator; unidirectional radiation pattern; wideband hybrid antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20061003
