Design, simulation and optimization of a single stage Low Noise Amplifier (LNA) for very low power L- Band satellite handheld applications

Abstract

In first stage of each microwave receiver, there is a Low Noise Amplifier (LNA) stage, and this LNA plays an important role to determine the quality factor of the receiver. The design of a LNA requires the trade-off of many important parameters including gain, Noise Figure (NF), stability, power consumption, cost and design complexity. In this paper, we have designed and simulate a single stage stable LNA circuit having gain 11.78 dB and noise figure 1.86 dB using microwave BJT AT3103 with Agilent package Advance Design Systems (ADS). This LNA operates at center frequency of 2 GHZ and it can be used in L-Band satellite modem for tracking applications.