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An effective probe compensated near-field — far-field (NF — FF) transformation with spherical spiral scanning for an offset mounted antenna, which uses a number of NF data minimum and practically coincident with that needed in the centered configuration, is developed in this work.
Two techniques to effectively compensate known positioning errors in a plane-polar near-field–far-field (NF–FF) transformation, using a minimum number of NF data and adopting an oblate ellipsoid to shape the considered antenna, are proposed and validated through experimental proofs. The former makes use of the singular value decomposition method to recover the voltage samples which would be acquired...
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