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Microwave Tower Absorption Profile in a Cylindrical Sample Contained in a Resonant Cylindrical Cavity

Published online by Cambridge University Press:  15 February 2011

H. W. Jackson ,
M. Barmatz  and
P. Wagner
H. W. Jackson
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
M. Barmatz
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
P. Wagner
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
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Abstract

An analytic approach is used for evaluation of the microwave power absorption profiles in a lossy dielectric cylinder coaxially aligned in a cylindrical cavity. This approach, based on a cylindrical shell model, also determines the normal mode frequencies and fields. Absorption profiles inside the sample will be presented for resonant modes that are intrinsically angular independent. In addition, results will be presented for special modes that are not intrinsically angular independent, but produce angular independent absorption for time average values. This new development broadens the class of modes that can be used in heating materials when isotropy about an axis is needed. We demonstrate how this model can extend the application of cavity perturbation theory for determining dielectric constants to cylinders of larger diameter. Implications of these results for microwave processing of materials are also discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 347: Symposium O – Microwave Processing of Materials IV , 1994 , 317
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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