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Numerical analysis of stacked cylindrical dielectric resonator antennas excited by coaxial probes

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3 Author(s)
Kishk, A.A. ; Dept. of Electr. Eng., Mississippi Univ., MS, USA ; Xiao Zhang ; Glisson, A.W.

The method of moments developed by Junker, Kishk and Glisson (1994) is used to analyze stacked dielectric-resonator antennas (DRA) to verify the experimental concept. The antenna consists of two cylindrical discs of different materials stacked vertically, placed above a ground plane, and excited by a coaxial probe as shown. It is found that the probe position and length have a significant effect on the input impedance, resonant frequency, and bandwidth of this antenna. An impedance bandwidth of up to 35% is achieved by varying the antenna parameters.

Published in:

Antennas and Propagation Society International Symposium, 2001. IEEE  (Volume:1 )

Date of Conference:

8-13 July 2001