An effective procedure to correct known positioning errors of the measurement probe in a bi-polar near to far-field (NFTFF) transformation for quasi-planar antennas, requiring a minimum number of NF data, is developed and experimentally assessed. The NFTFF transformation exploits a nonredundant sampling representation of the probe measured voltage got by assuming the antenna as enclosed in a surface made by two circular bowls with the same aperture (double bowl). The uniform bi-polar samples, i.e. the voltages at the points fixed by the representation, are precisely recovered from the not correctly spaced ones via a singular value decomposition based approach. Then, a 2-D optimal sampling interpolation formula is used to accurately reconstruct the NF data necessary for the plane-rectangular NFTFF transformation from the retrieved nonredundant uniform samples

Laboratory Testing of a SVD-Based Approach to Recover the Nonredundant Bi-Polar NF Data from the Positioning Error Affected Ones

D’Agostino Francesco;Ferrara Flaminio;Gennarelli Claudio;Guerriero rocco;Migliozzi Massimo
2017-01-01

Abstract

An effective procedure to correct known positioning errors of the measurement probe in a bi-polar near to far-field (NFTFF) transformation for quasi-planar antennas, requiring a minimum number of NF data, is developed and experimentally assessed. The NFTFF transformation exploits a nonredundant sampling representation of the probe measured voltage got by assuming the antenna as enclosed in a surface made by two circular bowls with the same aperture (double bowl). The uniform bi-polar samples, i.e. the voltages at the points fixed by the representation, are precisely recovered from the not correctly spaced ones via a singular value decomposition based approach. Then, a 2-D optimal sampling interpolation formula is used to accurately reconstruct the NF data necessary for the plane-rectangular NFTFF transformation from the retrieved nonredundant uniform samples
2017
9781785616990
9781785617003
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4703289
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