Summary
International Symposium on Antennas and Propagation
2011
Session Number:WeA1
Session:
Number:WeA1-2
Simulation Results of a Dual-Band and ShapedBeam Array Feed for an Offset Parabolic Reflector
Junichi Shinohara, Naobumi Michishita, Yoshihide Yamada, Mohammad Tariqul Islam, Norbahiah Misran,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
For a convenient portable earth station, an offset parabolic reflector with an array feed is considered. In this study, abilities of the radiation pattern synthesis by the array feed are investigated. Here, a simple dual band array feed is developed. Exact radiation characteristics are obtained with electromagnetic simulations. As a result, almost uniform aperture distribution is achieved by radiation pattern synthesis of a simple array feed. Moreover, array feed configuration of very low mutual coupling between dual frequency feeds is clarified. Finally, from the radiation patterns of the reflector antenna, high antenna gains and low spillover levels are ensured.