Journal of Shanghai University(Natural Science Edition) ›› 2017, Vol. 23 ›› Issue (5): 674-681.doi: 10.12066/j.issn.1007-2861.1673

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Optimal computation and measurement of permittivity of flake dielectric materials

ZHOU Jianjun, ZHANG Ning, YAN Jinkui   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
  • Received:2015-10-19 Online:2017-10-30 Published:2017-10-30

Abstract:

Based on an open-ended flanged coaxial probe technique, this paper measures complex permittivity of flake dielectric materials loading at the end of a probe. The method compares measured values and theoretically calculated values, the measured values being processed by optimization iteration computation. This paper introduces a theoretical model and the measurement system in detail. Feasibility and rationality of the presented method are shown by measuring some common materials.

Key words: complex reflection coefficient, optimization iterations method, relative dielectric constant, open-ended coaxial probe