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Accuracy of 3-D radiation boundary conditions for use with the vector Helmholtz equation

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1 Author(s)
Peterson, A.F. ; Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Radiation boundary conditions developed for use with the vector Helmholtz equation in three dimensions are reviewed, including an alternate second-order radiation condition that preserves the symmetry of the matrix operator arising within a numerical implementation. The accuracy of these conditions is systematically tested as a function of the boundary location using outward-propagating spherical harmonics

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Antennas and Propagation, IEEE Transactions on  (Volume:40 ,  Issue: 3 )