Near Field Apparatus and Methods For Emulating A Far Field 3D Antenna Pattern
AssigneeMatsing, Inc.
InventorsAlexander Zubov, Serguei Matitsine
Life of this patent
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Abstract
A far-field 3D radiation pattern for an antenna under test (AUT) is simulated by a near-field system using at data from one of the scanners to augment/extrapolate data from at least one other scanner. A smoothing function can be used to reduce anomalous oscillations in the augmented/extrapolated data.
Claims14
An antenna measurement system for producing a 3D radiation pattern emanating from an antenna under test (AUT) at a test wavelength L, the AUT having a longest first linear dimension, and a longest second linear dimension orthogonal to the first linear dimension, the system comprising:
- a first probe that traverses a first scanner over a distance D1 less than 2.4 times the longest first linear dimension;
- and
- a second probe that traverses a second scanner over a distance D2 less than 2.4 times the longest second linear dimension;
- wherein the AUT is rotatable with respect to at least one of the first and second scanners.
A method of producing a 3D radiation pattern for at least a first wavelength λ emanating from an antenna under test (AUT), the method comprising:
- positioning the AUT between a first scanner having a first measuring probe and a second scanner having a second measuring probe;
- and
- rotating at least one of the AUT and the first scanner with respect to one another;
- capturing first data from the first probe and second data from the second probe, and using the first data to augment/extrapolate the second data.
Dependencies are inferred from the claim text.