Title :
Aperture fed wideband circularly polarized rectangular stair shaped dielectric resonator antenna
Author :
Chair, Ricky ; Yang, ShingLung Steven ; Kishk, Ahmed A. ; Kai Fong Lee ; Luk, Kwai Man
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, University, MS, USA
fDate :
4/1/2006 12:00:00 AM
Abstract :
A circularly polarized rectangular stair shaped dielectric resonator antenna (DRA) is presented. The DRA is excited by a narrow rectangular slot and rotated 45° with respect to the sides of the DRA to generate circular polarization. A parametric study of the length to width ratio to optimize the axial ratio bandwidth is given. A 3 dB axial ratio bandwidth of 10.6% is achieved when the length to width ratio is 1.9.
Keywords :
antenna feeds; aperture-coupled antennas; broadband antennas; dielectric resonator antennas; electromagnetic wave polarisation; slot antennas; aperture fed wideband antenna; circular polarization; dielectric resonator antenna; narrow rectangular slot; rectangular stair shaped DRA; Aperture antennas; Bandwidth; Broadband antennas; Dielectric materials; Dielectric resonator antennas; Geometry; Optical polarization; Permittivity; Resonance; Wideband; Aperture coupling; broadband antennas; circular polarization; dielectric resonator antennas (DRA);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.872665
