Probe compensated FF reconstruction by NF planar spiral scanning

Bucci, O. M.; D'Agostino, Francesco; Gennarelli, Claudio; Riccio, Giovanni; Savarese, C.

doi:10.1049/ip-map:20020265

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An efficient probe-compensated near-field/far-field transformation technique with planar spiral scanning is proposed, which uses a minimum number of data. A non-redundant sampling representation of the probe output voltage on a planar spiral and a fast, accurate and stable interpolation algorithm are developed. By choosing the angular step of the spiral coincident with the sample spacing needed to interpolate such a voltage on a radial line, it is possible to reconstruct the data required by the standard probe-compensated plane-rectangular near-field/far-field transformation technique. The use of an open-ended cylindrical waveguide as scanning probe allows probe co-rotation to be avoided. Numerical examples are reported, assessing the accuracy and the stability of the far-field reconstruction process.

Titolo:	Probe compensated FF reconstruction by NF planar spiral scanning
Autori:	BUCCI O. M. D'AGOSTINO, Francesco GENNARELLI, Claudio RICCIO, Giovanni SAVARESE C. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	IEE PROCEEDINGS. MICROWAVES, ANTENNAS AND PROPAGATION
Abstract:	An efficient probe-compensated near-field/far-field transformation technique with planar spiral scanning is proposed, which uses a minimum number of data. A non-redundant sampling representation of the probe output voltage on a planar spiral and a fast, accurate and stable interpolation algorithm are developed. By choosing the angular step of the spiral coincident with the sample spacing needed to interpolate such a voltage on a radial line, it is possible to reconstruct the data required by the standard probe-compensated plane-rectangular near-field/far-field transformation technique. The use of an open-ended cylindrical waveguide as scanning probe allows probe co-rotation to be avoided. Numerical examples are reported, assessing the accuracy and the stability of the far-field reconstruction process.
Handle:	http://hdl.handle.net/11386/1058258
Appare nelle tipologie:	1.1.2 Articolo su rivista con ISSN

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