Work

Empirical Validation of Signal Predistortion for Nonlinear Distortion Mitigation in RF Amplifiers

Year: 2024

Type: conference-paper

Abstract: Amplifiers are essential components in EMC testing setups. However, it generates levels of distortions that can significantly impact the electromagnetic emissions and susceptibility characteristics of the device under test (DUT), potentially leading to erroneous conclusions and wrong interpretation of test results. In this paper, it is presented the experimental investigation of a signal predistortion method aimed at reducing the power of harmonics and eliminating intermodulation products. This approach is proposed for conducting EMC immunity testing using multi-tone signals. For the linearization with signal predistortion, it is considered a static nonlinear model with memory to define the inverse model of the RF amplifier. This model is based on the Volterra series, specifically named generalized memory polynomial (GMP).

Source: International Symposium on Electromagnetic Compatibility - EMC Europe (EMC Europe)

DOI: 10.1109/emceurope59828.2024.10722742

Authors: Nathalia A. Rocha Batista, Marcos Quílez, Ferran Silva, Mireya Fernandez Chimeno

Institution: Universitat Politècnica de Catalunya

Language: English

Topic: Advanced Power Amplifier Design

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Agencia Estatal de Investigación