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:
Aug. 24, 2021
Filed:
Jan. 08, 2020
Dau-chyrh Chang, Taipei, TW;
Dau-Chyrh Chang, Taipei, TW;
Other;
Abstract
This invention describes the technology of toroidal CATR (compact antenna test range) for generating multiple directional plane waves propagate toward the center axis of QZ (quiet zone). The toroidal CATR consists of torus as main reflector, sub-reflectors, and the corresponding feed antennas of sub-reflectors. This invention is to provide multiple directional plane waves propagating toward the center axis of torus which is also the center axis of QZ. The performances of QZ in this invention are with larger size of QZ and better electrical performance inside QZ. Due to the capability of multiple directional plane waves propagating toward the center axis of QZ, the complexity of positioner (turntable) for AUT (antenna under test) or radar target RCS (radar cross section) in three dimensional power pattern measurement will be simplified.