Amplitude Versus Time Resolution Trade-Off in Digital RF Transmitter Line-Ups

Wiedemann JPW, Fischer G, Irnstorfer F (2024)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2024

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 85-88

Conference Proceedings Title: 2024 15th German Microwave Conference (GeMiC)

Event location: Duisburg DE

ISBN: 9783982039732

DOI: 10.23919/GeMiC59120.2024.10485291

Abstract

A novel power amplifier (PA) architecture is presented which constitutes a hybrid between the switched capacitor PA (SCPA) and the class-D PA in order to improve the transmitter line-up digitization for high power radio frequency (RF) applications. Instead of using either the amplitude (corresponding to the SCPA) or the temporal (corresponding to the class-D PA) resolution to reconstruct the desired output signal amplitude, a trade-off between the two possibilities is used in order to relax the requirements for both. This work derives the theoretically optimum drive signals needed to realize such an architecture showing that the optimum drive strategy enables high signal integrity and power efficiency at high power RF output signals, while requiring fewer high speed drive signal generation circuits than initially expected.

Authors with CRIS profile

Philipp Wiedemann Lehrstuhl für Technische Elektronik Georg Fischer Professur für Technische Elektronik Florian Irnstorfer Lehrstuhl für Technische Elektronik

How to cite

APA:

Wiedemann, J.P.W., Fischer, G., & Irnstorfer, F. (2024). Amplitude Versus Time Resolution Trade-Off in Digital RF Transmitter Line-Ups. In 2024 15th German Microwave Conference (GeMiC) (pp. 85-88). Duisburg, DE: Institute of Electrical and Electronics Engineers Inc..

MLA:

Wiedemann, Jan Philipp Wiedemann, Georg Fischer, and Florian Irnstorfer. "Amplitude Versus Time Resolution Trade-Off in Digital RF Transmitter Line-Ups." Proceedings of the 15th German Microwave Conference, GeMiC 2024, Duisburg Institute of Electrical and Electronics Engineers Inc., 2024. 85-88.

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