Electromagnetic fields in cavities containing scattering objects
Abstract
Formulas describing the electromagnetic field in a rectangular cavity are derived from the Lorentz potential function. These formulas describe the incident field excited by an electric current filament arbitrarily located in the cavity. From these formulas, approximations are obtained for the diffracted field caused by current induced on the surfaces of scattering objects. The total field is then the sum of the incident and diffracted fields. Results of calculations for a shield room with a conducting work bench are shown. These examples show the changes in the field strength with changes in either the frequency or antenna position.
 Publication:

International Symposium on Electromagnetic Compatibility
 Pub Date:
 1985
 Bibcode:
 1985emc..symp..530O
 Keywords:

 Antenna Radiation Patterns;
 Electric Field Strength;
 Electromagnetic Fields;
 Electromagnetic Scattering;
 Mathematical Models;
 Electronics and Electrical Engineering