Accession Number : ADP007728

Title :   Electromagnetic Modeling of Single Mode Excited Material Loaded Applicators,

Corporate Author : MICHIGAN STATE UNIV EAST LANSING

Personal Author(s) : Manring, Ben ; Assmussen, Jes

Report Date : 27 APR 1992

Pagination or Media Count : 8

Abstract : Numerical modeling of the electromagnetic fields is investigated for a circular cylindrical cavity loaded with a coaxially positioned, circular cylindrical, homogeneous, lossy dielectric. Solution for the eigenfrequencies is accomplished by mode-matching techniques where the cavity is divided into a coaxial material-loaded waveguide region terminated on either end by an empty waveguide region. Fields in each region are expressed as infinite modal expansions. Appropriate field components are matched across the region boundaries to form an infinite characteristic matrix whose complex determinant is zero for each of the complex resonant eigenfrequencies. The model is used to describe resonant conditions for conductors and lossy dielectrics including nylon and alumina.

Descriptors :   *ELECTROMAGNETIC FIELDS, *MICROWAVES, BOUNDARIES, CAVITIES, DIELECTRICS, MATERIALS, MODELS, NYLON, WAVEGUIDES, MATHEMATICAL MODELS, ALUMINUM OXIDES, HEATING, ATTENUATION, RESONANT FREQUENCY, LOSSES, RESONATORS, SYMPOSIA.

Subject Categories : Electricity and Magnetism
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE