Direct Wideband Matching Technique for Nonlinear Multistage Power Amplifiers

Deublein A, Loose M, Riess D, Musolff C, Weigel R, Fischer G, Pfannenmüller C, Franchi N (2026)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2026

Pages Range: 1 - 3

Event location: Jeju, Republic of Korea KR

URI: https://ieeexplore.ieee.org/document/11378849

DOI: 10.1109/APMC65046.2025.11378849

Abstract

Key metrics of multistage power amplifiers – such as efficiency, linearity, and bandwidth – are strongly influenced by both interstage matching networks (ISMNs) and, in some cases, the nonlinear input impedances of transistors. This work presents a wideband direct matching technique that derives linear RC networks from nonlinear load-pull simulations, providing an intuitive framework to accelerate ISMN design and analysis, while accounting for nonlinear input behavior. A dual-stage Infineon GaN-on-Si demonstrator operating at 6.8 GHz was designed and measured, showing good agreement with simulation and demonstrating the technique’s value in guiding the design process.

Authors with CRIS profile

Alexander Deublein Lehrstuhl für Intelligente Technische Elektronik und Systeme Michael Loose Lehrstuhl für Intelligente Technische Elektronik und Systeme David Riess Lehrstuhl für Intelligente Technische Elektronik und Systeme Christian Musolff Lehrstuhl für Technische Elektronik (LTE) Robert Weigel Technische Fakultät Georg Fischer Professur für Technische Elektronik Christof Pfannenmüller Lehrstuhl für Intelligente Technische Elektronik und Systeme Norman Franchi Lehrstuhl für Intelligente Technische Elektronik und Systeme

How to cite

APA:

Deublein, A., Loose, M., Riess, D., Musolff, C., Weigel, R., Fischer, G.,... Franchi, N. (2026). Direct Wideband Matching Technique for Nonlinear Multistage Power Amplifiers. In Proceedings of the 2025 IEEE Asia-Pacific Microwave Conference (APMC) (pp. 1 - 3). Jeju, Republic of Korea, KR.

MLA:

Deublein, Alexander, et al. "Direct Wideband Matching Technique for Nonlinear Multistage Power Amplifiers." Proceedings of the 2025 IEEE Asia-Pacific Microwave Conference (APMC), Jeju, Republic of Korea 2026. 1 - 3.

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