Sandhu, M, Ali, A, Hunter, IC orcid.org/0000-0002-4246-6971 et al. (1 more author) (2016) A new method for the precise multiband microwave dielectric measurement using stepped impedance stub. Measurement Science and Technology, 27 (11). 117001. ISSN 0957-0233
Abstract
This article presents a new method of wideband dielectric measurement at microwave frequencies. This method can be used to determine the complex dielectric properties of solid and semisolid materials from 0.9GHz to 4.5GHz, including the ISM bands of 915 MHz and 2450MHz. The new method is based on the scattering parameter measurement of a stepped impedance open circuited micro-strip stub, partly loaded with dielectric test material. Current microwave wideband spectroscopy techniques generally measure dielectric materials over a wide range of frequencies but their accuracy is limited. In contrast, narrowband techniques generally measure dielectric properties to a high accuracy but only at a single frequency. This new technique is capable of measuring dielectric properties over a wide range of frequencies to a high accuracy. The technique has been verified by the empirical characterisation of the dielectric properties of Teflon and Duroid 5880 materials. Empirical results were in good agreement with values in the manufacturer’s data sheets. The complex permittivity data will be useful for further microwave processing of the materials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 IOP Publishing Ltd. This is an author produced version of a paper published in Measurement Science and Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Dielectric properties, loss factor, Microwave dielectric spectroscopy, wideband dielectric characterization |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Funding Information: | Funder Grant number Innovate UK fka Technology Strategy Board (TSB) 31587-233189 |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Sep 2016 10:18 |
Last Modified: | 28 Sep 2017 11:17 |
Published Version: | https://doi.org/10.1088/0957-0233/27/11/117001 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/0957-0233/27/11/117001 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:104700 |