Title :
A Dual-Mode Quadrature-Fed Wideband Circularly Polarized Dielectric Resonator Antenna
Author :
Li, Bin ; Hao, Cheng-Xiang ; Sheng, Xin-Qing
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
fDate :
7/1/1905 12:00:00 AM
Abstract :
In this letter, a rectangular dielectric resonator antenna (DRA) structure fed by two vertical strips with quadrature in phase is studied. Both the fundamental TE111 and the higher order TE113 modes can be simultaneously excited to generate a wideband circular polarization. The measured 10-dB impedance bandwidth is 32.8% from 2.7 to 3.76 GHz, under which the axial ratio is less than 4 dB. The radiation pattern and antenna gain are also studied.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; dielectric resonator antennas; microwave antennas; multifrequency antennas; TE111 modes; TE113 modes; antenna gain; antenna radiation pattern; bandwidth 2.7 GHz to 3.76 GHz; circularly polarized dielectric resonator antenna; dual-mode resonator antenna; impedance bandwidth; quadrature-fed wideband resonator antenna; rectangular dielectric resonator antenna; wideband circular polarization; Dielectric resonator antenna (DRA); circularly polarized (CP); quadrature-fed; wideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2030700
