Design and Analysis of a Low Noise Amplifier for 5G Systems

This study designed a low noise amplifier (LNA) to achieve the 3.4~3.8GHz frequency band in the future 5G, and used advanced design system (ADS) for circuit design and simulation. LNA circuit using TSMC 0.18um RF CMOS process, the circuit simulation results at 3.6GHz operating frequency, the input has a good input impedance matching to 50Ω, the output has sufficient gain of 15.2dB and lower noise figure of 1.34dB, IP3=-6dBm, P1dB=- 13.5dBm, DC voltage of 1.8V and power consumption of 9.3mW.