Gaussian Pulse Characterization of RF Power Amplifiers

Tommaso Cappello*, Zoya Popovic, Kevin A Morris, Angelo Cappello

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)
73 Downloads (Pure)

Abstract

This work presents a new RF power amplifier characterization technique based on a Gaussian pulse, which is shown to approximate the envelope of a multi-carrier signal with 0.5% error around the peaks. The standard deviation of the Gaussian pulses is inversely proportional to the I/Q signal bandwidth. This test signal is shown to accurately capture nonlinear memory effects that result in gain dispersion after the peak power is reached. As an example, it is shown that the gain amplitude and phase can vary up to 2:3 dB and 6◦ for a 10-W 3.75-GHz GaN power-amplifier evaluation board, depending on the I/Q signal bandwidth and peak power level.
Original languageEnglish
Article number9350310
Pages (from-to)417-420
Number of pages4
JournalIEEE Microwave and Wireless Components Letters
Volume31
Issue number4
Early online date2 Aug 2021
DOIs
Publication statusE-pub ahead of print - 2 Aug 2021

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