Title :
Laboratory testing on a nonredundant NF-FF transformation with plane-polar scanning optimized for quasi-planar antennas
Author :
D´Agostino, F. ; Ferrara, Flaminio ; Gennarelli, Claudio ; Guerriero, Rocco ; Migliozzi, Massimo
Author_Institution :
D.I.In., Univ. di Salerno, Fisciano, Italy
Abstract :
This work deals with the experimental validation of a probe compensated near-field - far-field (NF-FF) transformation with plane-polar scanning, which makes possible to lower the number of needed measurements, as well as the time required for the data acquisition when dealing with quasi-planar antennas. It relies on the use of the nonredundant sampling representations of electromagnetic fields, employing an oblate ellipsoid to shape an antenna under test characterized by quasi-planar geometry. A two-dimensional optimal sampling interpolation formula allows the reconstruction of the NF data at any point on the measurement plane and, in particular, at those required by the classical NF-FF transformation with the plane-rectangular scan. Some experimental results carried out at the UNISA Antenna Characterization Lab and assessing the effectiveness of the technique are shown.
Keywords :
antenna testing; interpolation; planar antennas; scanning antennas; NF data reconstruction; UNISA antenna characterization lab; antenna under test; data acquisition; electromagnetic field nonredundant sampling representation; near-field-far-field transformation; nonredundant NF-FF transformation; plane-polar scanning optimization; quasiplanar antenna; quasiplanar geometry; two-dimensional optimal sampling interpolation formula; Antenna measurements; Antennas; Bandwidth; Noise measurement; Open systems; Probes; Voltage measurement;
Conference_Titel :
Antenna Measurements & Applications (CAMA), 2014 IEEE Conference on
Conference_Location :
Antibes Juan-les-Pins
DOI :
10.1109/CAMA.2014.7003367