Gregory, A (2025) An Algorithm for Fitting Q-factor to Scalar Transmission-Coefficient Data with Asymmetric Peak. NPL Report. TQE 33

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Abstract

This report presents an algorithm for obtaining Q-factor by fitting to swept-frequency scalar measurements on resonances that are asymmetric as a result of a leakage signal. Formulae for obtaining estimates of the unloaded Q-factor are also derived. Comparisons are made between Q-factors fitted by scalar and vector algorithms to measured data, and to simulated data. Example computer-codes and test examples are given.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	TQE 33
Keywords:	Q-factor, scalar measurement
Subjects:	Electromagnetics > RF and Microwave
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.47120/npl.TQE
Last Modified:	26 Jun 2025 13:33
URI:	https://eprintspublications.npl.co.uk/id/eprint/10184