ANALYSIS OF DIELECTRIC-RESONATOR ANTENNAS WITH EMPHASIS ON HEMISPHERICAL STRUCTURES

被引：59
作者：
KISHK, AA
ZHOU, G
GLISSON, AW
机构：
[1] Department of Electrical Engineering, University of Mississippi, University
来源：
IEEE ANTENNAS AND PROPAGATION MAGAZINE | 1994年 / 36卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/74.275547
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article, an overview is given for the development of dielectric-resonator antennas. A detailed analysis and study of the hemispherical structure, excited by a coaxial probe or a slot aperture, is then given, using the dyadic Green's functions pertaining to an electric-current source or a magnetic-current source, located in a dielectric sphere. The integral equation for a hemispherical dielectric-resonator antenna (DRA), excited by either a coaxial probe or a slot aperture, is obtained. The integral equation is solved using the method of moments (MoM). The antenna characteristics, such as input impedance, radiation patterns, directivity, and efficiency, are computed numerically, around the resonant frequency of the TE111 mode (the HEM11 mode for cylindrical coordinates). The computed input impedance is compared with numerical and experimental data available in the literature.
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页码：20 / 31
页数：12
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