Accession Number : ADP007780

Title :   Experimental Examination of Material Loaded Cylindrical Applicators and Comparison with Theoretical Models,

Corporate Author : MICHIGAN STATE UNIV EAST LANSING

Personal Author(s) : Asmussen, J. ; Manring, B. ; Fritz, R. ; Siegel, M.

Report Date : 27 APR 1992

Pagination or Media Count : 11

Abstract : Microwave heating experiments are presented for several different applicator/load configurations. Techniques are described for measuring resonant frequency, cavity quality factor, and electric field at the applicator wall. Theoretical calculations of resonant frequency and field patterns for coaxially loaded rods are shown to compare very well with experiment. Placement and orientation of anisotropic graphite fiber reinforced epoxy composite wafers for maximum power absorption is established. Finally, a method for uniform heating of large materials by mode-switching is demonstrated for the case of nylon disks in TE111 and TE211 modes.

Descriptors :   *MICROWAVES, *CAVITY RESONATORS, *GRAPHITE EPOXY COMPOSITES, ABSORPTION, APPLICATORS, CAVITIES, CONFIGURATIONS, DISKS, ELECTRIC FIELDS, EPOXY COMPOSITES, FIBERS, FREQUENCY, GRAPHITE, HEATING, MATERIALS, NYLON, PATTERNS, POWER, QUALITY, RESONANT FREQUENCY, RODS, SWITCHING, UNIFORMS, WAFERS, WALLS, FIBER REINFORCED COMPOSITES, ELECTROMAGNETIC FIELDS, CERAMIC MATERIALS, SYMPOSIA.

Subject Categories : Electrical and Electronic Equipment
      Laminates and Composite Materials
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE