NDLI: Prediction of Effective Permittivity of Diphasic Dielectrics as a Function of Frequency

Content Provider	IEEE Xplore Digital Library
Author	Koledintseva, M.Y. Patil, S.K. Schwartz, R.W. Huebner, W. Rozanov, K.N. Jianxiang Shen Ji Chen
Copyright Year	1994
Abstract	An analytical model based on an equivalent impedance circuit for effective permittivity of a composite dielectric as a function of frequency with complex-shaped inclusions is presented. The geometry of the capacitor containing this composite dielectric is discretized into partial impedance elements, the total equivalent impedance is calculated, and the effective permittivity of the composite dielectric is obtained from this equivalent impedance. An example application using this method is given for an individual cell of a diphasic dielectric consisting of a high-permittivity spherical inclusion enclosed in a low-permittivity parallelepiped. The capacitance and resistance for individual discretized elements in the composite cell are modeled as a function of an inclusion radius. The proposed approach is then extended to a periodic three-dimensional structure comprised of multiple individual cells. The equivalent impedance model is valid for both static and alternating applied electric fields, over the entire range of volume fraction of inclusions. The equivalent impedance model has a few advantages over existing effective medium theories, including no limitations on the shape of inclusions or their separation distance.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
File Size	941545
File Format	PDF
ISSN	10709878
Volume Number	16
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permittivity Dielectrics Frequency Impedance Analytical models Circuits Geometry Capacitors Capacitance Electric resistance Dielectric composites, frequency, effective permittivity, equivalent impedance
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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