NF — FF transformation with helicoidal scan for long antennas: Positioning errors compensation

Author

D´Agostino, F. ; Ferrara, F. ; Gennarelli, C. ; Guerriero, R. ; Migliozzi, M.

Author_Institution

D.I.I.I.E., Univ. of Salerno, Fisciano, Italy

fYear

2010

Firstpage

173

Lastpage

176

Abstract

An iterative technique is proposed in this communication for compensating the probe positioning errors in a near-field - far-field transformation with helicoidal scanning for long antennas. It relies on a very effective source modelling wherein the surface enclosing the antenna under test is a cylinder ended in two half-spheres and uses an optimal sampling interpolation algorithm for reconstructing the data needed by a standard near-field - far-field transformation technique with cylindrical scanning from the acquired irregularly spaced ones. Numerical tests confirm the effectiveness and the robustness of the approach.

Keywords

antenna testing; error compensation; interpolation; iterative methods; sampling methods; scanning antennas; NF-FF transformation; antenna under test; cylindrical scanning; data reconstruction; helicoidal scanning; iterative technique; long antennas; near-field-far-field transformation; optimal sampling interpolation algorithm; positioning errors compensation; probe positioning errors; source modelling; surface enclosing; Antennas; Bandwidth; Noise measurement; Open systems; Probes; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Conference (LAPC), 2010 Loughborough

Conference_Location

Loughborough

Print_ISBN

978-1-4244-7304-5

Type

conf

DOI

10.1109/LAPC.2010.5666242

Filename

5666242