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Theory and application of radiation boundary operators

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4 Author(s)
Moore, T.G. ; Northwestern Univ., Evanston, IL, USA ; Blaschak, J.G. ; Taflove, Allen ; Kriegsmann, G.A.

A succinct unified review is provided of the theory of radiation boundary operators. With the recent introduction of the on-surface radiation condition (OSRC) method and the continued growth of finite-difference and finite-element techniques for modeling electromagnetic wave scattering problems, the understanding and use of radiation boundary operators has become increasingly important. Results are presented to illustrate the application of radiation boundary operators in both these areas. Recent OSRC results include analysis of the scattering behavior of both electrically small and large cylinders, a reactively loaded acoustic sphere, and a simple reentrant duct. Radiation boundary operator results include the demonstration of the effectiveness of higher-order operators in truncating finite-difference time-domain grids.<>

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Antennas and Propagation, IEEE Transactions on  (Volume:36 ,  Issue: 12 )