Theory and practice for a spherical-scan near-field antenna range

Author

Thal, Herbert L., Jr. ; Manges, John B.

Author_Institution

Gen. Electr. Co., Philadelphia, PA, USA

Volume

36

Issue

6

fYear

1988

fDate

6/1/1988 12:00:00 AM

Firstpage

815

Lastpage

821

Abstract

A spherical-scan near-field antenna range is described. The procedure for real-time data processing is outlined. Relations for the number of data points, largest aspect angle measured, and data acquisition and processing times as a function of the antenna diameter-to-wavelength ratio and the measurement distance are given. Experimental results are presented for an antenna enclosed by a minimum sphere having a diameter of 240 wavelengths. All the equations for the spherical wave analysis, probe correction, and radial transformation are provided in appendices in numerically convenient form without the use of any special functions

Keywords

antenna radiation patterns; electric field measurement; scanning antennas; telecommunications computing; antenna diameter-to-wavelength ratio; data acquisition; data points; largest aspect angle; measurement distance; probe correction; radial transformation; real-time data processing; spherical wave analysis; spherical-scan near-field antenna range; Antenna measurements; Antenna theory; Azimuth; Computer errors; Data acquisition; Hardware; Memory; Polarization; Probes; Testing;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.1183

Filename

1183