A SLOT DESIGN FOR UNIFORM APERTURE FIELD DISTRIBUTION IN SINGLE-LAYERED RADIAL LINE SLOT ANTENNAS

被引：114

作者：

TAKAHASHI, M

TAKADA, J

ANDO, M

GOTO, N

机构：

[1] Electrical and Electronic Engineering, Tokyo Institute of Technology, Meguro-Ku, Tokyo, 152, 2-12-1, Ohokayama

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1991年 / 39卷 / 07期

关键词：

D O I：

10.1109/8.86915

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 single-layered radial line slot antenna (RLSA) is proposed for a direct broadcast from a satellite (DBS) subscriber antenna. It utilizes a radially outward-traveling wave and the aperture field is intolerably tapered if the uniform slots are used. Two novel techniques are applied. First, the slot design for uniform aperture field distribution is introduced. Second, the radial line is terminated by a matching spiral, in place of a dummy load. It suppresses reflection and radiates all the residual power in circular polarization. For a model antenna of 600 mm diameter, the excellent efficiency of 65% is observed.

引用

页码：954 / 959

页数：6

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