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

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

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 measure...

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Veröffentlicht in:IEEE transactions on antennas and propagation 1988-06, Vol.36 (6), p.815-821
Hauptverfasser: Thal, H.L., Manges, J.B.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna measurements
Antenna theory
Azimuth
Computer errors
Data acquisition
Hardware
Memory
Polarization
Probes
Testing
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Zusammenfassung: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.< >
ISSN:0018-926X
1558-2221
DOI:10.1109/8.1183