An enhanced active load-pull algorithm for faster convergence

Davies-Smith, Cory, Quaglia, Roberto ORCID: https://orcid.org/0000-0003-3228-301X, Woodington, Simon, Sheikh, Aamir and Tasker, Paul ORCID: https://orcid.org/0000-0002-6760-7830 2022. An enhanced active load-pull algorithm for faster convergence. Presented at: European Microwave Week 2021, London, UK, 2-7 April 2022. European Microwave Week 2021 "United in Microwaves" Conference Proceedings. IEEE, p. 354. 10.23919/EuMC50147.2022.9784250

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Abstract

This paper proposes a new active load-pull equation and discusses the use of behavioural models to add intelligence to an active, open loop load-pull algorithm. This improves the prediction of the required injected signal conditions to achieve a target load, minimising the iterations required and improving convergence reliability. The results were validated by performing load-pull measurements on an amplifier at 2.14 GHz using the Focus Microwaves Rapid-VT load-pull system. A reduction of 47% in the average number of iterations required was found when using a linear model based load-pull algorithm compared to a simple weighted algorithm. A further reduction was achieved in the compression region by increasing the behavioural model complexity to include the non-linear 3rd order conjugate term.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	IEEE
ISBN:	9782874870620
Last Modified:	10 Dec 2022 02:15
URI:	https://orca.cardiff.ac.uk/id/eprint/151227

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