Title :
Stepped dielectric resonator antennas for wideband applications
Author :
Pliakostathis, K. ; Mirshekar-Syahkal, D.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
A three-step dielectric resonator antenna is introduced which can possess a large bandwidth. In an example presented, the antenna which is considered to have a dielectric constant of 37 can provide a 10 dB bandwidth in excess of 10% over which the radiation pattern effectively remains unaltered. The antenna, which is excited through a conductor strip etched on the antenna vertical side, is compatible with a coaxial feed line.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; dielectric resonator antennas; microwave antennas; multifrequency antennas; 2.98 GHz; 3.16 GHz; DRA; coaxial feed line; conductor strip; dielectric constant; radiation pattern; radiation patterns; stepped dielectric resonator antennas; wideband antennas; Antenna feeds; Aperture antennas; Bandwidth; Broadband antennas; Coaxial components; Conductors; Dielectric constant; Dielectric resonator antennas; Etching; Frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330440
