Title :
Numerical analysis of stacked cylindrical dielectric resonator antennas excited by coaxial probes
Author :
Kishk, A.A. ; Xiao Zhang ; Glisson, A.W.
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., MS, USA
Abstract :
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.
Keywords :
dielectric resonators; electric impedance; method of moments; microwave antennas; probes; antenna parameters; bandwidth; coaxial probes; cylindrical discs; ground plane; input impedance; method of moments; numerical analysis; probe length; probe position; resonant frequency; stacked cylindrical dielectric resonator antennas; Antenna radiation patterns; Bandwidth; Coaxial components; Dielectric resonator antennas; Geometry; Impedance; Moment methods; Probes; Resonance; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.958859
