University of Oulu

M. H. Montaseri, T. Rahkonen, J. Aikio and A. Pärssinen, "Performance Improvement of Multi-Stacked CMOS mm-Wave Power Amplifiers Based on Negative Capacitance Phase Compensation," 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC), Brive La Gaillarde, 2018, pp. 1-3. doi: 10.1109/INMMIC.2018.8429990

Performance improvement of multi-stacked CMOS mm-wave power amplifiers based on negative capacitance phase compensation

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Author: Montaseri, Mohammad Hassan1; Rahkonen, Timo1; Aikio, Janne1;
Organizations: 1Centre for Wireless Communications and RF/mm-wave Circuits and Systems Research Group Faculty of Information Technology and Electrical Engineering (ITEE) University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2019-02-13


This paper proposes a method for performance improvement of multi-stacked CMOS millimeter-wave power amplifiers based on negative capacitance phase detuning, which can be generalized to other phase detuning techniques. It not only yields better inter-stage matching between stacks, but also offers the advantage of relaxed inter-stage phase rotation due to transistor parasitics. A x1.6 output power/gain and 7% efficiency improvement is observed as a result of the proposed technique. This is achieved because phase misalignment between stacks is minimized. The method is evaluated using simulations based on 28GHz PA in 45nm CMOS technology.

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ISBN Print: 978-1-5386-5507-8
Pages: 1 - 3
Article number: 8429990
DOI: 10.1109/INMMIC.2018.8429990
Host publication: 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMIC 2018
Host publication editor: Mons, S.
Conference: International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This research has been sponsored by InfoTech Oulu Doctoral Program, Finnish Funding Agency for Technology and Innovation (Tekes), Nokia, Esju and CoreHW. This research has also been financially supported by Academy of Finland 6Genesis Flagship (grant 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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