LNA Design for LEO Space S-Band Applications

Low-Noise Amplifiers are key components in every communication receiving end. The LNAs primary purpose is to amplify the weak input signal, adding additional little noise. A SiGe Low-Noise amplifier at design frequency of 3.5GHz is presented. This paper includes the bias network design, Stability analysis, Matching Network Design and EM Co-simulation of the LNA. Gain of ≥15dB, Noise Figure of ≤1dB is achieved to make sure noise contribution of the amplifier is as low as possible. Keysight's Advance Design Software tool has been used for simulation.