Summary
International Symposium on Antennas and Propagation
2012
Session Number:4A1
Session:
Number:4A1-3
A Ku Band Small Reflector Antenna Using Backfire Primary Radiator for Satellite Communication System on Board Vessel
Shin-ichi Yamamoto, Shuji Nuimura, Tomohiro Mizuno, Yoshio Inasawa, Hiroyuki Sato, Makio Tsuchiya,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
Recently, the demand for mobile broadband communications on aircrafts and ships has increased. There are a lot of worldwide demands for high-speed data communications in sea area. Introduction of the earth stations on board vessels (ESVs) system using the Ku band satellite communications systems has been started. The authors propose an antenna for the system. It is necessary to conform to international and regional standards and regulations all around the world. For this purpose, antenna needs to be designed to achieve low side lobe with keeping high antenna efficiency. In this paper, we report the design of the small reflector antenna for the Ku band satellite communications system on board vessel. The backfire primary radiator, the suppression structure of the surface currents on feed waveguide, and the hat structure with rotational symmetry electromagnetic field are applied to the antenna design. The low side lobe characteristic is achieved over the wide angle range.