ANALYSIS OF A BROAD-BAND HEMISPHERICAL DIELECTRIC RESONATOR ANTENNA WITH A DIELECTRIC COATING

被引：22

作者：

WONG, KL

CHEN, NC

机构：

[1] Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 1994年 / 7卷 / 02期

关键词：

DIELECTRIC RESONATOR ANTENNA; DIELECTRIC COATING;

D O I：

10.1002/mop.4650070213

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：

A probe-fed hemispherical dielectric resonator antenna with a dielectric coating is investigated rigorously by using a Green's function formulation. Numerical results for the input impedance at TE111 mode are calculated. It is found that, by coating the dielectric resonator antenna with a dielectric material having a relative permittivity about half that of the dielectric resonator antenna, the impedance bandwidth of the antenna can be significantly improved. This dielectric coating here serves as a transition region between the wave inside the dielectric resonator antenna and the free-space wave, and thus can increase the impedance bandwidth of the antenna. A broadband dielectric resonator antenna can thus be obtained. (C) 1994 John Wiley & Sons, Inc.

引用

页码：73 / 76

页数：4

共 6 条

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[2]

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[3]

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[4]

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[5]

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[6]

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