Publication Details
Dongyang Yan, Yang Zhang, Dries Peumans, Mark Ingels, Piet Wambacq

2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2023

Contribution To Book Anthology


In this paper, a two-stage Ka-band power amplifier (PA) utilizing a sub-quarter-wavelength (SQWL) balun is presented for efficient and compact series power combining. The differential two-stage PA includes a high-order interstage matching network to suppress AM-PM distortion without the addition of additional active devices. The PA is fabricated using a 150nm GaN technology and produces over 32 dB m output power across a frequency range of 26–30 GHz. The differential pair plus SQWL balun occupies a small area of only 0.4mm 2 , resulting in a high power density of 5.725 W/mm 2 • The presented PA is among the highest in power & efficiency achieved with a differential-end PA at Ka-band frequency range in G a N technologies.

DOI scopus