Single-Cut Phaseless Near-Field Measurements for Fast Antenna Testing

The Use of Statistical Image Classification as a Convergence Criteria in Phaseless Near-field Antenna Measurements

The utility of a variety of objective, quantitative and robust methods of assessing similarities between antenna measurement data have already been highlighted in the literature. These techniques essentially involved the extraction of interval, ordinal, and categorical features from antenna pattern data sets that can then be effectively compared to establish a measure of their adjacency, i.e. s...

Application of the Global Optimization Approaches to Planar Near-Field Antenna Phaseless Measurements

This paper deals with a method of the radiation pattern determination of the directional antennas. The method combining both the functional minimization method and the Fourier iterative algorithm is based on the phaseless near-field measurement on two plane surfaces. The method is used for a reconstruction of the phase distribution on the aperture of the measured antenna, and for the determinat...

A Non-Invasive, Near-Field and Very Near-Field, Phaseless Antenna Characterization System

Double -Step -Scanning Technique for Spherical Near-Field Antenna Measurements

Probe-corrected spherical near-field antenna measurements with an arbitrary probe set certain requirements on an applicable scanning technique. The computational complexity of the general high-order probe correction technique for an arbitrary probe, that is based on the scanning, is , where is proportional to the radius of the antenna under test (AUT) minimum sphere in wavelengths. With the pre...

Planar Near-Field Antenna Measurements Using Nonideal Measurement Locations¤

— The standard planar near-…eld to far-…eld transformation method requires data points on a planerectangular lattice. In this paper we introduce a transformation algorithm in which measurements are neither required to lie on a regular grid nor are strictly con…ned to a plane. Computational complexity is O (N logN), where N is number of data points. (Actual calculation times depend on the numeri...