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. 27, 1990
Filed:
Dec. 22, 1988
Applicant:
Inventors:
Heyno Garbe, Baden, CH;
Diethard Hansen, Berikon, CH;
Assignee:
BBC Brown Boveri AG, Baden, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324642 ; 324637 ;
Abstract
In a method for measuring a characteristic impedance and a propagation constant of a two-port network (2), an output port (5) of the two-port network (2) is successively terminated with at least two different finite known impedances (3a, 3b) which are independent of the two-port network (2). An input impedance (ZE1, ZE2) is measured for each residual impedance. From the termination impedances (ZA1, ZA2) of the impedances (3a, 3b) and the corresponding input impedances (ZE1, ZE2), the propagation constant and the characteristic impedance are determined.