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IEEE Transactions on Antennas and Propagation
Volume 48 Number 1, January 2000

Circularly Polarized Circular Sector Dielectric Resonator Antenna

Page 126.

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.

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