A plane-polar near-field to far-field transformation with the fast Hankel transform method |
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| Authors: | Chen CAO Emmanuel Van Lil Antoine Van De Capelle Kees Van ’t Klooster |
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| Affiliation: | 1. ESAT/Telemic. Dept. of Electronic Engineering, K.U. Leuven. Kardinaal Mercierlaan 94, B-3001, Heverlee, Belgique
2. Antenna section, esa, Estec, PO Box 299, NL 2200, AB Noordwijk, Pays-Bas
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| Abstract: | It is known that a direct radial integration, used to compute the far-field from uniformly spaced plane-polar near-field measurements requires the evaluation of a large amount of Bessel functions and hence CPU time. Up to 1985 only unequally spaced fast Hankel algorithms were available. Hansen 3] developed an algorithm that was usable for equally spaced measurements points, but only for order zero. His theory is generalised in this paper and applied to a plane-polar near-field to far-field transformation. |
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