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A new finite element formulation for RF scattering by complex bodies of revolution

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3 Author(s)
Khebir, A. ; General Electric Corp. Res. & Dev., Schenectady, NY, USA ; D'Angelo, J. ; Joseph, J.

A formulation for and results of solving electromagnetic scattering from complex inhomogeneous axisymmetric bodies are presented. The approach presented uses the finite element method in the frequency domain. A node-based approach is used to solve for the three components of the electric or magnetic field. The finite element mesh is truncated using a three-dimensional vector absorbing boundary condition based on the Wilcox expansion theorem. A harmonic expansion of the near-field solution obtained from the finite element solution is used to compute the far fields and radar cross section

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Antennas and Propagation, IEEE Transactions on  (Volume:41 ,  Issue: 5 )