The results indicated that the receiving system gain is increased by 0.25 dB/K and E b/N 0 is improved by 0.7 dB with 10 -7 BER, when the gain of Chinese produced LNA is 9.8 dB better and the noise temperature is 4 K lower than import LNA.

• 结果表明，国产LNA比进口LNA的增益提高9.；8dB，噪声温度降低4K，接收系统增益改善约0