MEASURED PERFORMANCE OF A BROADBAND MATCHING SECTION FOR PERIPHERALLY FED HELICAL ANTENNAS.

被引：0

作者：

Baker, D.E. ^{[1
]}

机构：

[1] CSIR, Natl Inst for Aeronautics, & Systems Technology, Pretoria,, S Afr, CSIR, Natl Inst for Aeronautics & Systems Technology, Pretoria, S Afr

来源：

Transactions of the South African Institute of Electrical Engineers | 1985年 / 76卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A description is given of the measured performance of an impedance matching section incorporated into the first turn of a peripherally fed helical antenna to transform its impedance to 50 OMEGA . The design of the matching section is briefly reviewed. The measured results show that very low VSWR (1. 2:1) can be achieved over the usable frequency range of the antenna. In addition to showing the basic impedance matching performance, results are also presented to illustrate the effect of the number of helix turns and of the conductor diameter on the impedance match. Antenna pattern data show that improved performance can be achieved by a simple termination at the free end of the helix.

引用

页码：33 / 38