Publication Details
Zhiwei Zong, Johan Nguyen, Yao Liu, Yang Zhang, Yang Zhang, Xinyan Tang, Giovanni Mangraviti, Piet Wambacq

2021 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2021

Contribution To Book Anthology


This paper presents a 39 GHz front-end module (FEM) in 22 nm FD-SOI technology for 5G communications. The PA output stage uses a 2-stacked FET topology to achieve high output power. A two-way current combiner is used to combine output power from the output stage while maintaining a uniform waveform distribution over each transistor unit cell to enhance the device reliability. The LNA consists of two stages to obtain high power gain with low power consumption. Derivative-superposition (DS) with a common-mode inductor is used to improve the LNA linearity. The measured Psat and PAEmax in TX mode are 20.4 dBm and 25.6%, respectively. The measured NF and IIP3 in RX mode are 5.7 dB and -13 dBm, respectively. A Pout, avg of 13.5 dBm and a PAEavg of 10.6% is achieved in 64-QAM 400 MSym/s single-carrier at EVMrms of -25 dB for TX-mode.

DOI scopus