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

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

1036

Lastpage

1038

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2030700

Filename

5210146