Circularly polarised low-profile rectangular dielectric-resonator antenna: FD-TD and experimental results

Author

Esselle, K.P.

Author_Institution

Dept. of Electron., Macquarie Univ., Sydney, NSW, Australia

Volume

1

fYear

1996

Firstpage

577

Abstract

Theoretical and experimental results for a circularly polarised (CP), rectangular, low-profile, dielectric-resonator (DR) antenna are presented. The DR is fed by a 50 /spl Omega/ microstrip line through a single aperture. The measured 3 dB axial-ratio bandwidth in the boresight direction is 14.35-14.80 GHz (3%). At 14.75 GHz, the measured input reflection coefficient is -28 dB; the measured axial ratio in one elevation plane is close to 3 dB over 110/spl deg/ but it increases more rapidly with the elevation angle in the orthogonal elevation plane. The theoretical patterns compare fairly well with the measurements.

Keywords

antenna feeds; antenna radiation patterns; antenna testing; dielectric resonators; electromagnetic wave polarisation; finite difference time-domain analysis; microstrip lines; 14.35 to 14.80 GHz; 14.75 GHz; 3 dB axial-ratio bandwidth; 50 ohm; FDTD; boresight direction; circularly polarised low profile antenna; elevation plane; experimental results; measured axial ratio; measured input reflection coefficient; microstrip line; orthogonal elevation plane; rectangular dielectric resonator antenna; single aperture; theoretical antenna patterns; Antenna measurements; Antenna theory; Aperture antennas; Bandwidth; Dielectric measurements; Dielectric resonator antennas; Dielectric substrates; Fabrication; Microstrip; Polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1996. AP-S. Digest

Print_ISBN

0-7803-3216-4

Type

conf

DOI

10.1109/APS.1996.549665

Filename

549665