A near-field to far-field transformation for spheroidal geometry utilizing an eigenfunction expansion

  title={A near-field to far-field transformation for spheroidal geometry utilizing an eigenfunction expansion},
  author={G. F. Ricciardi and W E Stutzman},
  journal={IEEE Transactions on Antennas and Propagation},
This work presents a near-field to far-field (NF-FF) transformation for antenna and scatterer radiation evaluation. The transformation allows practical computation by making use of a sampling surface in the near-field that is spheroidal in shape: namely a prolate or oblate spheroid. The resulting vector wave equation does not support orthogonal vector solutions in spheroidal coordinates and instead rectangular field components are solved for using the scalar wave equation in spheroidal… CONTINUE READING


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