ANALYSIS OF A CAVITY-BACKED ANNULAR SLOT ANTENNA WITH ONE POINT SHORTED

被引：76

作者：

MORISHITA, H

HIRASAWA, K

FUJIMOTO, K

机构：

[1] University of Tsukuba, Institute of Applied Physics, Tsukuba

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1991年 / 39卷 / 10期

关键词：

D O I：

10.1109/8.97378

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：

Analysis of a cavity-backed annular slot antenna with one point shorted is performed experimentally and theoretically. Resonance frequencies, bandwidths, and radiation patterns are studied with respect to a slot width, a cavity depth, and a slot shorting position. In the theoretical analysis, the method of moments is applied to find the magnetic current on the slot and the Green's function for the field inside the cavity has been newly derived. By selecting a slot shorting position, circular polarization and the bandwidth of more than 10% voltage standing-wave ratio ((VSWR) less-than-or-equal-to 2) for the input impedance are obtained.

引用

页码：1472 / 1478

页数：7

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