Extension of On-Surface Radiation Condition (OSRC) Theory to Full-Vector Electromagnetic Wave Scattering by Three-Dimensional Conducting, Dielectric, and Coated Targets
Abstract
This project introduced radiation boundary condition (RBC) and absorbing boundary condition (ABC) theory to the engineering electromagnetics community. A novel approximate method for obtaining the scattering of 2-D and 3- D bodies, the on-surface radiation condition (OSRC) method, was formulated and validated. RBCs and ABCs were shown to work well at points closer to scatterers than anyone had expected. Finite-difference time domain (FD-TD) methods exploiting these ABCs were pursued for applications in scattering, radiation, penetration, biomedical studies, and nonlinear optics. Multiprocessing supercomputer software was developed for FD-TD, leading to the largest scale detailed electromagnetic wave interaction models ever conducted, including entire jet fighter aircraft modeled for radar cross section (RCS) at UHF frequencies up to 500 MHz. Electromagnetic wave scattering, Radiation boundary conditions, Finite-Difference Time-Domain (FD-TD).
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 27, 1993
- Accession Number
- ADA274023
Entities
People
- Allen Taflove
- Korada R. Umashankar
Organizations
- Northwestern University