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September 10, 2020IEEE Transactions on Microwave Theory and Techniques

A Position-Independent Approach to Accurate Measurement of Broadband Electromagnetic Constitutive Parameters of Magnetodielectric Materials

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Authors

QLQifan LiYCYajie ChenCCChris Caisse

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Overview

Experimental study demonstrates position-independent parameter extraction in magnetodielectric materials, eliminating fixture alignment errors across wide frequency bands.

Key Points

  • To develop an improved Nicolson-Ross-Weir approach that accurately extracts broadband permeability and permittivity from magnetodielectric materials without requiring prior knowledge of sample position.
  • Determined sample position within measurement fixtures by matching phasor angles of reflection coefficients at the sample boundaries for isotropic materials.
  • Tested the noniterative analytical method using two distinct magnetodielectric materials across two fixture setups with differing geometries.
  • Eliminated sample position measurement errors and reduced uncertainties in calculated permeability and permittivity.
  • Confirmed position-independent, high-accuracy parameter determination across wide broadband frequency ranges without numerical iteration.

Cite This Study

Li et al. (2020) studied this question.

synapsesocial.com/papers/6a900dd0c7b7d4543f89d014https://doi.org/10.1109/tmtt.2020.3018712
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