Title :
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
fDate :
6/1/1995 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
