SLOT COUPLING IN A RADIAL LINE SLOT ANTENNA FOR 12-GHZ BAND SATELLITE TV RECEPTION

被引：20

作者：

SASAZAWA, H

OSHIMA, Y

SAKURAI, K

ANDO, M

GOTO, N

机构：

[1] Tokyo Inst of Technology, Tokyo, Jpn

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1988年 / 36卷 / 09期

关键词：

Telecommunication Systems; Satellite Relay - Television Systems - Waveguide Components--Couplers;

D O I：

10.1109/8.8599

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：

Coupling between slots and slow-wave waveguides in a radial line slot antenna (RLSA) is discussed. Field analysis of the waveguide with a surface impedance wall revealed a considerable change in the propagation constant due to coupling. Experiments were performed to confirm these results and to obtain the surface impedance for actual slots. The change in the propagation constant caused the antenna efficiency to exhibit its maxima at two separated frequencies. An efficiency of 60% and 50% was measured at 11.6 and 12.4 GHz, respectively, which confirms a theoretical prediction. This effect suggests the possibility of broadband planar antennas.

引用

页码：1221 / 1226

页数：6

共 13 条

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