Near-field sampling representation over a sphere from a nonredundant number of data

Author

Bucci, O.M. ; Agostino, F.D. ; Gennarelli, C. ; Riccio, G. ; Savarese, C.

Author_Institution

Dipartimento di Ingegneria Elettrica, Naples Univ., Italy

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

1465

Lastpage

1468

Abstract

A two-dimensional sampling interpolation algorithm is proposed here to reconstruct in a fast and accurate way the antenna radiated electromagnetic field over a sphere in the near-field region. It is based on the recent theoretical results regarding the nonredundant field representations on curves and surfaces. The use of a spheroid (prolate or oblate) as modelling of the source allows us to reduce the number of required samples with respect to a spherical source modelling when considering antennas having one or two predominant dimensions. Samples of numerical tests assess the efficiency and the stability of the algorithm. It can be properly employed to obtain a near field-far field transformation with spherical scanning from a minimum number of data

Keywords

antenna radiation patterns; antenna theory; interpolation; numerical stability; 2D sampling interpolation algorithm; antenna radiated EM field; near field-far field transformation; near-field region; near-field sampling representation; sphere; spherical scanning; stability; Electromagnetic fields; Electromagnetic radiation; Geometry; Interpolation; Open systems; Redundancy; Sampling methods; Stability; Surface reconstruction; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2000 Asia-Pacific

Print_ISBN

0-7803-6435-X

Type

conf

DOI

10.1109/APMC.2000.926113

Filename

926113