A broadband stripline technique for characterizing relative permittivity and permeability (article)
Gallagher, C; Cole, N; Savage, P; et al.Sambles, J; Hibbins, A; McKeever, C
Date: 15 November 2018
Journal
IEEE Transactions on Microwave Theory and Techniques
Publisher
Institute of Electrical and Electronics Engineers
Publisher DOI
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Abstract
We present a stripline design and calibration method
allowing the extraction of relative permittivity of single dielectric
samples in the 200 MHz – 50 GHz range. The simultaneous
extraction of relative permittivity and permeability is also illustrated
by characterizing a set of samples comprising magnetic
inclusions over the same ...
We present a stripline design and calibration method
allowing the extraction of relative permittivity of single dielectric
samples in the 200 MHz – 50 GHz range. The simultaneous
extraction of relative permittivity and permeability is also illustrated
by characterizing a set of samples comprising magnetic
inclusions over the same frequency range. The calibration
method involves the use of seven measurements of the stripline
scattering parameters (S-parameters) with different length shorts
inserted. From these measurements, it is possible to determine
the reflections at the transition regions of the stripline to correct
the measured S-parameters for characterization. By quantifying
a range of samples with increasing percentage volume filling
of barium titanate in polyurethane for the case of dielectric
samples, and carbonyl iron powder (CIP) for magnetic samples,
this work demonstrates a reliable method for the broadband
characterization of composite materials.
Physics and Astronomy
Faculty of Environment, Science and Economy
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