反射面天线增益的快速估算  

Quick Estimate the Gain of Reflector Antennae

作　　者：银秋华[1] 周建寨[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2013年第4期50-52,共3页Radio Communications Technology

摘　　要：反射面天线广泛地应用于卫星通信、航天测控以及射电天文等领域。天线增益是天线的最主要指标之一,如何准确地估算出天线的增益对于天线方案与系统论证至关重要。从天线增益的基本概念出发推导出了抛物面天线增益的计算公式,并给出了用于指导工程实践的估算公式与曲线,最后利用导出的公式对13 m天线的效率进行估算,通过与实测结果比较可知文中所给出的估算方法有效。The reflector antenna is widely used in the areas of satellite communication,deep space communication and navigation system,and radio astronomy.The gain is one important parameter for antenna.It is important to evaluate antenna gain accurately.A formula is derived which can get the gain of antennae from foundational conception.We also present some formula and curve for reference and guide in actual engineering.According to the comparison of the estimated result with the method present in this paper with the calibrated result of 13-meter antenna,the process given in this paper is reasonable.

关 键 词：天线增益 天线效率 反射面天线 卫星通信 

分 类 号：TN820.12[电子电信—信息与通信工程]