偏置碟形天线
潜望镜天线
卡塞格伦天线
光学
抛物面反射器
偏移量(计算机科学)
抛物面天线
馈电喇叭
反射器(摄影)
扇形波束天线
辐射模式
辐射
相位中心
梁(结构)
波束波导天线
物理
天线(收音机)
工程类
电信
计算机科学
光源
程序设计语言
作者
Bin Li,Yong Luo,Xu Tan,Xiao Ning Zhang,Jian Wu
出处
期刊:Advanced Materials Research
日期:2013-11-01
卷期号:846-847: 663-666
被引量:1
标识
DOI:10.4028/www.scientific.net/amr.846-847.663
摘要
This paper focuses on GEO multi-beam satellite offset parabolic reflector antenna. In this paper, radiation fields generated by different feeds are derived, and phase radiation pattern is mainly discussed. It can be seen from the numerical results that when the feed is at the focal point of parabolic reflector, the beam has equal phase within beam service area. In addition, for offset feeds, phase changes slowly from beam center to beam boundary, and the variation is about 0.1 radian.
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