Broadband Amplifier Module Used in 3MM IF-Switch Radiometer

This paper introduced the design procedure of a low-noise broadband amplifier module used in 3mm IF-Switch radiometer. We first analyzed the impact of IF amplifier on the overall performance of the radiometer and then illustrated the techniques used in broadband amplifier design. CAD software was used in the procedure of simulation and the circuit was implemented in hybrid microstrip format. The final amplifier module matched well with the simulation result.