Theory and Experiment of the Hollow Rectangular Dielectric Resonator Antenna

Author

Lu, Kai ; Leung, Kwok Wa ; Pan, Yong Mei

Author_Institution

State Key Lab. of Millimeter Waves & Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

631

Lastpage

634

Abstract

For the first time, the dielectric waveguide model (DWM) is used to calculate the resonance frequency of the hollow rectangular dielectric resonator antenna (DRA). In the analysis, the transverse transmission line technique is used along with the effective dielectric constant method to obtain characteristic equations of the hollow DRA. Good agreement between the calculation, measurement, and HFSS simulation is observed. The theory was used to facilitate the design of a strip-fed circularly polarized (CP) hollow DRA. It provides a wide 3-dB axial-ratio bandwidth of 12.4%, which is ~ 3 times of that of the solid CP DRA.

Keywords

dielectric resonator antennas; dielectric waveguides; polarisation; rectangular waveguides; telecommunication transmission lines; DRA; HFSS simulation; axial ratio bandwidth; circular polarization; dielectric constant method; dielectric resonator antenna; dielectric waveguide model; hollow rectangular antenna; transverse transmission line; Antenna measurements; Bandwidth; Dielectric resonator antennas; Dielectrics; Frequency measurement; Impedance; Mathematical model; Circular polarization; dielectric resonator antenna (DRA); dielectric waveguide model (DWM);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2158977

Filename

5871673