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Broadband aperture coupled flipped staired pyramid and conical dielectric resonator antennas

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4 Author(s)
R. Chair ; Dept. of Electr. Eng., Univ. of Mississippi, University, MS, USA ; A. A. Kishk ; K. F. Lee ; C. E. Smith

Broadband DRA using a narrow slot aperture coupled to a microstrip line feed are presented. Two different shapes of dielectric resonators tapered in a stair-like structure have been designed for wideband applications. The resonators are located at the center of the rectangular slot and are excited by a center feed microstrip line. Two flipped step stair shaped dielectric resonators with square and cylindrical cross sections are designed to give an impedance bandwidth of 49.3 % and 32.8 %, respectively. They have broadside radiation patterns across the matching band with an average gain higher than 6 dBi. The simulation results are obtained by using Fidelity by Zeland Software, which is based on the FDTD method.

Published in:

Antennas and Propagation Society International Symposium, 2004. IEEE  (Volume:2 )

Date of Conference:

20-25 June 2004