EBG Focal Feed Improvements for Ka-Band Multibeam Space Applications

被引：13

作者：

Menudier, C. ^{[1
]}

Chantalat, R. ^{[2
]}

Arnaud, E. ^{[2
]}

Thevenot, M. ^{[2
]}

Monediere, T. ^{[2
]}

Dumon, P. ^{[1
]}

机构：

[1] CNES, F-31401 Toulouse 9, France

[2] CNRS, UMR 6172, XLIM, F-87060 Limoges, France

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷

关键词：

Antenna efficiency; antenna feeds; electromagnetic band-gap (EBG) materials; reflector antenna; ANTENNA;

D O I：

10.1109/LAWP.2009.2021779

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：

This letter presents the enhancement of an electromagnetic band-gap (EBG) antenna that is used to feed a reflector antenna for a space multibeam application in Ka band. One of the main difficulties in a typical focal feed cluster design is to obtain high illumination performances with neighbored and close radiating elements. The new structure presented in this letter tackles this difficulty by using a two-level EBG antenna as a multibeam focal feed. This last one is designed to illuminate a side-fed offset cassegrain antenna (SFOCA) working in Ka band and dedicated to a multibeam telecommunication coverage over Europe. A prototype has been measured, and the reflector antenna performances have been evaluated in order to show the good results obtained with this new multibeam focal feed.

引用

页码：611 / 615

页数：5

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