Practical Implementation of Probe-Position Correction in Near-field Planar Scanning Measurements

Published

October 17, 2004

Author(s)

Jeffrey R. Guerrieri, Katherine MacReynolds, Michael H. Francis, Ronald C. Wittmann, Douglas T. Tamura

Abstract

Planar near-field measurements require taking amplitude and phase data on an accurate and equal space grid on the plane in front of the antenna under test. The position accuracy on this grid has been determined to be '/50. As frequencies become higher, position on the planar grid becomes more difficult to achieve. This paper discusses the use of a laser-tracking device to provide position information in x, y, and z that can be used in position correction algorithms to correct for any displacement error in the actual measurement. This paper describes the physical implementation of a probe-position correction capability at NIST. Preliminary test results are presented and evaluated.

Proceedings Title

Antenna Measurements Techniques Association

Conference Dates

October 17-21, 2004

Conference Location

Atlanta, GA, USA

Pub Type

Conferences

Keywords

laser tracker, planar near-field measurements, position error correction, probe position

Citation

Guerrieri, J. , MacReynolds, K. , Francis, M. , Wittmann, R. and Tamura, D. (2004), Practical Implementation of Probe-Position Correction in Near-field Planar Scanning Measurements, Antenna Measurements Techniques Association, Atlanta, GA, USA (Accessed March 13, 2025)