Improved Low-Profile Helical Antenna Design for INMARSAT Applications

被引：5

作者：

Fu, Shiqiang ^{[1
]}

Cao, Yuan ^{[1
]}

Zhou, Yue ^{[1
]}

Fang, Shaojun ^{[1
]}

机构：

[1] Dalian Maritime Univ, Sch Informat Sci & Technol, Dalian 116026, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2012年 / 2012卷

基金：

中国国家自然科学基金;

关键词：

Copper - Satellite communication systems - Design - Structural optimization;

D O I：

10.1155/2012/829371

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 new low-profile variable pitch angle cylindrical helical antenna employing a copper strip as impedance transformer is proposed in this paper. Under the circumstance of a limited antenna height, the circular polarization performance of the antenna has been enhanced by changing the pitch angle and the input impedance matching has been improved by adjusting the copper strip match stub. The design method of the proposed antenna is given. The optimal antenna structure for INMARSAT application has been fabricated and measured. The measured results show that in the whole maritime satellite communication work band the VSWR is less than 1.2, its antenna gain is higher than 9 dBi, and the axial ratio is lower than 2.5 dB. The experimental results have a good agreement with the simulations. The proposed antenna is compact and easy tuning. It provides a promising antenna element for maritime satellite communication applications.

引用

页数：5

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