Generalised probe method to measure the liquid complex permittivity

Xing, Lei, Zhu, Jiajia, Xu, Qian, Zhao, Yongjiu, Song, Chaoyun and Huang, Yi ORCID: 0000-0001-7774-1024 (2020) Generalised probe method to measure the liquid complex permittivity IET MICROWAVES ANTENNAS & PROPAGATION, 14 (8). pp. 707-711. ISSN 1751-8725, 1751-8733

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Abstract

A generalised probe method is proposed for fast and accurate complex permittivity measurements. The method is based on the simulated reflection coefficients using the finite difference frequency domain method. A database is set up, which consists of the simulated complex reflection coefficients of the unknown material under test. A fast searching algorithm is performed to match the measured reflection coefficients to the reference values in the database, thus the complex permittivity of the liquid can be obtained. An in-house measurement system is developed. The unique feature of this system is that it can be applied to an arbitrarily-shaped probe. Liquid samples are measured and the results are compared with that published in the literature. Good agreements are obtained. These results could be useful for liquid microwave component designs and applications.

Item Type:	Article
Uncontrolled Keywords:	permittivity measurement, finite difference methods, permittivity, frequency-domain analysis, fast searching algorithm, measured reflection coefficients, in-house measurement system, liquid samples, liquid microwave component designs, generalised probe method, liquid complex permittivity, fast permittivity measurements, accurate complex permittivity measurements, simulated reflection coefficients, finite difference frequency domain method, simulated complex reflection coefficients
Depositing User:	Symplectic Admin
Date Deposited:	20 Jul 2020 07:50
Last Modified:	16 Jun 2026 04:07
DOI:	10.1049/iet-map.2019.1009
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3094479
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