University of Oulu

Aikio, J.P.; Sethi, A.; Hietanen, M.; Rusanen, J.; Rahkonen, T.; Pärssinen, A. Ka-Band Stacked Power Amplifier Supporting 3GPP New Radio FR2 Band n258 Implemented Using 45 nm CMOS SOI. Appl. Sci. 2021, 11, 6708.

Ka-band stacked power amplifier supporting 3GPP new radio FR2 band n258 implemented using 45 nm CMOS SOI

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Author: Aikio, Janne P.1; Sethi, Alok1; Hietanen, Mikko1;
Organizations: 1Faculty of Information Technology and Electrical Engineering, University of Oulu, P.O. Box 4500, FI-90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.8 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2021
Publish Date: 2021-12-14


This paper presents a fully integrated, four-stack, single-ended, single stage power amplifier (PA) for millimeter-wave (mmWave) wireless applications that was fabricated and designed using 45 nm complementary metal oxide semiconductor silicon on insulator (CMOS SOI) technology. The frequency of operation is from 20 GHz to 30 GHz, with 13.7 dB of maximum gain. The maximum RF (radio frequency) output power (Pout), power-added efficiency (PAE) and output 1 dB compression point are 20.5 dBm, 29% and 18.8 dBm, respectively, achieved at 24 GHz. The error vector magnitude (EVM) of 12.5% was measured at an average channel power of 14.5 dBm at the center of the the 3GPP/NR (third generation partnership project/new radio) FR2 band n258—i.e., 26 GHz—using a 100 MHz 16-quadrature amplitude modulation (QAM) 3GPP/NR orthogonal frequency division modulation (OFDM) signal.

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Series: Applied sciences
ISSN: 2076-3417
ISSN-E: 2076-3417
ISSN-L: 2076-3417
Volume: 11
Issue: 15
Article number: 6708
DOI: 10.3390/app11156708
Type of Publication: A1 Journal article – refereed
Field of Science: 111 Mathematics
221 Nanotechnology
213 Electronic, automation and communications engineering, electronics
Funding: This research has been financially supported Academy of Finland research projects MIMEPA (grant 323779) and 6Genesis Flagship (grant 318927).
Academy of Finland Grant Number: 323779
Detailed Information: 323779 (Academy of Finland Funding decision)
318927 (Academy of Finland Funding decision)
Copyright information: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (