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

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1 Author(s)
Esselle, K.P. ; Dept. of Electron., Macquarie Univ., Sydney, NSW, Australia

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.

Published in:

Antennas and Propagation Society International Symposium, 1996. AP-S. Digest  (Volume:1 )

Date of Conference:

21-26 July 1996