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.
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
关键词
太阳源
50m天线
增益测量
Y因子
误差分析
the sun source
50 m antenna
gain measurement
Y-factors
error analysis
