The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2025
Filed:
Sep. 30, 2022
Fragrant Mountain Microwave Co., Ltd., Zhongshan, CN;
Dongcai Su, Zhongshan, CN;
Junwei Dong, Zhongshan, CN;
FRAGRANT MOUNTAIN MICROWAVE CO., LTD., Guangdong Province, CN;
Abstract
A near-field testing method proposed in the present invention includes steps of: in a selected coordinate system, controlling a mover to cause random relative movement of the DUT and the probe to generate multiple random test points, determining one or more postures of the probe, and obtaining the electromagnetic field coefficients of the probe corresponding the postures of the probe respectively; obtaining measured values of the electromagnetic field signals collected by the probes, and obtaining a set of measured values; according to the set of measured values, the electromagnetic field coefficients of the probe, and according to the Lorenz reciprocity theorem in electromagnetism, determining electromagnetic field coefficients of the DUT through convex optimization; obtaining, according to the electromagnetic field coefficients of the DUT, a far field pattern of the DUT or an electric field and/or a magnetic field at any point outside the DUT.