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A perfectly matched anisotropic absorber for use as an absorbing boundary condition

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4 Author(s)
Sacks, Z.S. ; Dept. of Electr. Comput. Eng., Worcester Polytech. Inst., MA, USA ; Kingsland, D.M. ; Lee, R. ; Jin-Fa Lee

An alternative formulation of the “perfectly matched layer” mesh truncation scheme is introduced. The present scheme is based on using a layer of diagonally anisotropic material to absorb outgoing waves from the computation domain. The material properties can be chosen such that the interface between the absorbing material and free space is reflection-less for all frequencies, polarizations, and angles of incidence. This approach does not involve a modification of Maxwell's equations and is easy to implement in codes that allow the use of anisotropic material properties

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Antennas and Propagation, IEEE Transactions on  (Volume:43 ,  Issue: 12 )