Circularly polarized circular sector dielectric resonator antenna

Author

Tam, Matthew T K ; Murch, Ross D.

Author_Institution

Dept. of Electr. & Eng., Hong Kong Univ. of Sci. & Technol., Clear Water Bay, Hong Kong

Volume

48

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

126

Lastpage

128

Abstract

A circular sector dielectric resonator antenna (DRA) with circular polarization and a single feed is investigated and demonstrated. The design utilizes the radius to height ratio and feed position of the circular sector DRA to excite two resonant modes that are spatially orthogonal in polarization and in phase quadrature. Experimental results are provided for the design and these demonstrate that the circular sector DRA produces circular polarized radiation with axial ratio less than 3 dB over a 10% bandwidth

Keywords

antenna radiation patterns; dielectric resonators; electromagnetic wave polarisation; microwave antennas; 2.71 GHz; DRA; axial ratio; circular polarization; circular sector dielectric resonator antenna; circularly polarized radiation; phase quadrature; radius to height ratio; resonant modes; single feed; spatially orthogonal modes; Antenna feeds; Bandwidth; Couplings; Dielectric materials; Dielectric resonator antennas; Geometry; Hardware; Polarization; Resonance; Resonant frequency;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.827396

Filename

827396