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, 2010
Filed:
Sep. 01, 2005
Hans-joachim Simon, Wolfratshausen, DE;
Hans-Joachim Simon, Wolfratshausen, DE;
Rohde & Schwarz GmbH & Co. KG, Munich, DE;
Abstract
A method for calibrating a network analyzer having at least two test ports is described in which a completely known, transmitting first calibration standard, is designed as a two-port standard and is connected between two test ports of the network analyzer, is measured. Also measured is a second calibration standard that is designed as a two-port standard or a double one-port standard and is connected between the same test ports of the network analyzer, of which only the reflection parameters are known. Measured too is a third calibration standard, symmetrical with regard to its reflection parameters and designed as a two-port standard or a double one-port standard and is connected between the same test ports of the network analyzer. From results of these measurements, the matrix elements of error two-ports assigned to the test ports are calculated.