Estimating Far-Field Errors Due to Mechanical Errors in Spherical Near-Field Scanning*

Published

July 8, 2012

Author(s)

Michael H. Francis

Abstract

When the mechanical requirements are established for a spherical near-field scanner, it is desirable to estimate what effects the expected mechanical errors will have on the determination of the far field of potential antennas that will be measured on the proposed range. The National Institute of Standards and Technology (NIST) has investigated the effects of mechanical errors for a proposed outdoor spherical near-field range to be located at Ft. Huachuca, AZ. This investigation was performed by using theoretical far-field patterns and introducing position errors into simulated spherical near-field measurements. Far-field patterns were then calculated with and without probe-position correction to determine the effects of mechanical position errors. This paper reports the results of these investigations.

Citation

IEEE Transactions on Antennas and Propagation

Pub Type

Journals

Keywords

near-field techniques, probe-position correction, spherical near-field measurements, uncertainties.

Citation

Francis, M. (2012), Estimating Far-Field Errors Due to Mechanical Errors in Spherical Near-Field Scanning*, IEEE Transactions on Antennas and Propagation (Accessed May 14, 2025)