A High Power SOI-CMOS WI-FI 6 Front-End Module with Reconfigurable Class-J Power Amplifier

This paper presents the design and experimental characterization of a high-power monolithic SOI-CMOS Front End-Module (FEM) supporting Wi-Fi 6/6E signals over the 5.1 to 5.9GHz frequency band. The FEM includes an SP3T antenna switch, a power amplifier (PA), a low noise amplifier (LNA) with bypass mode, and a digital controller. The LNA achieves 14dB of power gain with less than 2.1dB of noise figure (NF) with 25mW of power consumption. The reconfigurable differential Class-J PA delivers 32dBm of saturated output power (Psat ) with 34% of peak PAE. Without DPD, the reconfigurable PA achieves state-of-the art performance with 18/20dBm of linear output power (Pout) for an EVM of -37.5/-34dB with 80MHz MCS9/MCS11 signals.