Efficient Wideband mmW Transceiver Front End for 5G Base Stations in 22-nm FD-SOI CMOS
This article presents a fully integrated millimeter-wave (mmW) transceiver front end covering 24.25–29.5 GHz. It features a wideband Doherty power amplifier utilizing adaptive bias and a transmit/receive switch (TRX-switch) that has embedded low noise amplifier to antenna matching. The phase shift of 90 $^\circ$ to the Doherty auxiliary amplifier is achieved using a separate IQ-mixer w