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:
Nov. 22, 2022
Filed:
Mar. 26, 2021
Rohde & Schwarz Gmbh & Co. KG, Munich, DE;
Rohde & Schwarz GmbH & Co. KG, Munich, DE;
Abstract
An automated calibration unit has several ports for connecting with respective ports of a test and measurement instrument to be calibrated. The automated calibration unit has a frequency conversion circuit that is non-linear and reciprocal in amplitude and phase. The automated calibration unit has at least one switching circuit with several switch states. The automated calibration unit is configured to selectively connect each one of the several ports to another one of the several ports depending on the switch state, thereby providing a through connection via the frequency conversion circuit. The automated calibration unit is configured to selectively connect each one of the several ports to at least one of several calibration standards respectively depending on the switch state. Further, a frequency conversion circuit and a method of performing calibration of a test and measurement instrument are described. Moreover, a method of absolute power calibration transfer is described.