Measurement of radiation efficiency of dielectric resonator antennas

Author

Mongia, R.K. ; Ittipiboon, A. ; Cuhaci, M.

Author_Institution

Communication Res. Centre, Ottawa, Ont., Canada

Volume

4

Issue

3

fYear

1994

fDate

3/1/1994 12:00:00 AM

Firstpage

80

Lastpage

82

Abstract

Radiation efficiency (due to conduction and dielectric losses) of dielectric resonator antennas has been measured. Results show that for dielectric resonators placed directly on a metallic plane, the conduction losses are quite small. A radiation efficiency of >98% has been measured for dielectric resonator antennas operated in the dominant hybrid (HE/sub 11/spl delta//) mode. Theoretical considerations show scope of further improvement in the radiation efficiency by choosing optimum resonator parameters.<>

Keywords

antenna radiation patterns; dielectric resonators; microwave antennas; 3 to 4 GHz; 98 percent; HE/sub 11/spl delta// mode; conduction losses; dielectric losses; dielectric resonator antennas; dominant hybrid mode; metallic plane; optimum resonator parameters; radiation efficiency; Antenna measurements; Conducting materials; Conductors; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Dielectric resonator antennas; Loss measurement; Probes; Q factor;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.275587

Filename

275587