Electromagnetic Diffusion and Wire Coupling
Final rept. Sep 1987-Apr 1988
MISSION RESEARCH CORP SANTA BARBARA CA
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This report documents the research performed to develop physical insight into the coupling of radiated, pulsed, electromagnetic energy to a thin wire located inside a rectangular metallic en sure. The electromagnetic fields diffuse into the rectangular cavity. The cavity size is not small compared to the wavelengths in the exciting field. A prime objective was to determine how the wire transients will change due to the parameters of cavity size, wire locations and orientation, and incident pulse parameters such as polarization, risetime, and decay time. The approach involved frequency domain analysis based on three distinct frequency regimes low, intermediate, and high. In the low frequency region the skin depth is larger than the wall thickness of the enclosure. The intermediate region extends to the lowest internal mode of the enclosure. The high frequency region extends upward from the lowest mode. validation of the analytical results, planned under Phase II of the SBIR, were not performed.... EMP, Electromagnetic coupling, Shielding, Diffusion, Wire coupling.
- Electricity and Magnetism