Design of Broadband Low Noise Amplifier
Jiang Fang-kun · Modern Electronics Technique · 2011
The broadband characteristic of Lange couplers was used to design L/S band balanced broadband low noise amplifier,and a simulated design software was used to optimize the operating frequency,noise figure,gain,input and output SWR and other several important indicators.The designed amplifier whose gain is 33～35 dB,noise figure≤1 dB,input and output SWR 1.5 when the frequency rang is 1.2～2.5 GHz.The low noise amplifier has prefect performance and meets the technical requirements.