用太阳源测量UHF频段50m天线增益及误差分析  

Gain Measurement and Error Analysis of UHF Band 50 Meter Aperture Antenna Using the Sun Source

作　　者：秦顺友[1] 耿京朝[1] 王小强[1] 

机构地区：[1]中国电子科技集团公司第54研究所,石家庄050081

出　　处：《中国电子科学研究院学报》2007年第6期623-626,共4页Journal of China Academy of Electronics and Information Technology

摘　　要：简述了利用太阳源测量天线增益的基本公式,讨论了各种修正因子的计算方法。当50 m天线工作于611 MHz时,测量的天线增益为47.754 dB i,天线效率为58.25%,且测量的天线增益同理论增益吻合很好。最后,对增益测量误差进行了分析,其均方根误差小于或等于±0.29 dB。Basic formulae of measuring antenna gain by using the sun source are described simply. Calculating method of various correct factors is discussed. While 50 meter antenna work frequency is equal to 611 MHz, antenna gain of measuring is equal to 47. 754 dBi, antenna efficiency is 58.25%, and antenna gain of measuring accords well good with theory calculating. Finally, gain measurement error is analyzed, the results show that rms error of gain measurement is less than or equal to ＋ 0.29 dB.

关 键 词：太阳源 50m天线 增益测量 Y因子 误差分析 

分 类 号：TN820[电子电信—信息与通信工程]