Title :
Wideband dielectric resonator antenna excited by cavity-backed circular aperture with microstrip tuning fork
Author :
Leung, K.W. ; Leung, C.K.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
fDate :
7/10/2003 12:00:00 AM
Abstract :
A wideband dielectric resonator antenna excited by a circular aperture is investigated experimentally. The aperture is coupled by a microstrip feedline with a microstrip fork-like tuning stub. A backing cavity is placed beneath the stub to block undesirable backside radiation. The return loss, field pattern, and antenna gain of the proposed configuration were measured, and the results are compared with those without the backing cavity.
Keywords :
antenna radiation patterns; broadband antennas; dielectric resonator antennas; losses; microstrip lines; tuning; antenna gain; backing cavity; cavity-backed circular aperture; dielectric resonator antenna; field pattern; microstrip feedline; microstrip tuning fork; return loss; tuning stub; undesirable backside radiation; wideband antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030692
