Title :
Singular-Value Optimization in Plane-Polar Near-Field Antenna Characterization
Author :
Capozzoli, A. ; Curcio, C. ; Elia, G.D. ; Liseno, A.
Author_Institution :
Dipt. di Ing. Biomedica, Elettron. e delle Telecomun. (DIBET), Univ. di Napoli Federico II, Naples, Italy
fDate :
4/1/2010 12:00:00 AM
Abstract :
We develop a near-field/far-field (NFFF) transformation approach for characterizing planar aperture antennas from plane-polar scanning data. The radial and azimuthal field-sampling spacings are chosen to provide the minimum number of near-field samples, optimizing the singular-value dynamics of the relevant linear operator connecting unknowns and data. A numerical and experimental analysis is provided, showing how the approach is capable of significantly reducing both the number of required samples and the number of measurement rings, as compared to the advanced sampling techniques available in the literature.
Keywords :
aperture antennas; optimisation; planar antennas; singular value decomposition; NFFF transformation approach; advanced sampling techniques; azimuthal field-sampling spacing; experimental analysis; near-field-far-field transformation approach; numerical analysis; planar aperture antennas; plane-polar near-field antenna characterization; plane-polar scanning data; radial field-sampling spacing; singular-value optimization; Antenna measurements; Aperture antennas; Electromagnet radiation; Joining processes; Near-field radiation pattern; Sampling methods; Antenna measurements; antenna radiation patterns; microwave measurements; near-field/far-field transformations; plane-polar scanning; sampling methods; singular value decomposition; singular value optimization;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2010.5525581
