Title :
Wideband circularly polarized hollow dielectric resonator antenna with a parasitic strip
Author :
Lu Kai ; Leung Kwok Wa
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China
Abstract :
A wideband circularly polarized hollow dielectric resonator antenna (DRA) is studied in this paper. A conducting strip is used to excite the DRA, and a parasitic patch is attached near a corner of the DRA to generate circularly polarized fields. The antenna was simulated using Ansoft HFSS. Measurements were done and the results agree well with simulations. It provides a wide 3-dB axial-ratio bandwidth of 11.8%, which is ~3 times of that of the solid CP DRA.
Keywords :
broadband antennas; dielectric polarisation; dielectric resonator antennas; 3-dB axial-ratio bandwidth; Ansoft HFSS; conducting strip; parasitic strip; wideband circularly polarized hollow dielectric resonator antenna; Bandwidth; circular polarization; dielectric resonator antenna;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6036998
