Abstract: This paper presents a 50 MHz~2 GHz wide frequency band low noise amplifier (LNA) module with dual feedback loops. The reason for measured low overall power gain and serious gain degeneration in high frequency band is analyzed. To improve the gain flatness of the LNA, a gain compensation network is added to the source of the transistor. In this wide-band range which contains over 5 octaves, measurement results show that the overall gain is greater than 26.5dB with ±0.75 dB variation, noise figure (NF) is less than 1.4dB, the average 1dB compression point is about 11.1 dBm, and the VSWR is acceptable.