Microwave absorption by conductor-loaded dielectrics

Author

Neelakanta, Perambur S. ; Park, Joseph C.

Author_Institution

Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA

Volume

43

Issue

6

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1381

Lastpage

1383

Abstract

A theoretical model to predict the microwave absorption by a conductor-loaded dielectric is developed. The microwave power transmission coefficient of the test material is derived in terms of the effective conductivity and permittivity parameters (of the composite material) as a function of volume fraction of the conductor loading. The absorption/transmission characteristics of the test material versus volume fraction of metal loading are described by three distinct regimes having low-loss, lossy and metal-like characteristics. Theoretical predictions are comparable with the measured data pertinent to an iron-plus-dielectric material

Keywords

composite materials; electromagnetic wave absorption; microwaves; permittivity; conductor-loaded dielectrics; effective conductivity; effective permittivity; metal loading; microwave absorption; microwave power transmission coefficient; Composite materials; Conducting materials; Conductivity; Dielectric materials; Electromagnetic wave absorption; Inorganic materials; Materials testing; Permittivity; Power transmission; Predictive models;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.390198

Filename

390198