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:
Sep. 05, 2006
Filed:
Dec. 12, 2005
Håkan Berg, Göteborg, SE;
Håkan Berg, Göteborg, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method of controlling a characteristic impedance of a transmission line, and a transmission line implementing the method. According to a basic version of the invention a distance between longitudinal currents are controlled, thereby controlling a characteristic inductance of the transmission line. This without hindering transversal currents on which a characteristic capacitance is dependent upon. This is achieved by cutting longitudinal currents within a minimum distance between the longitudinal currents and leaving longitudinal currents that have a distance greater than the minimum distance alone. This is done without cutting transversal currents to any significant degree. The longitudinal currents can be cut in the return conductor and/or in the signal strip, in dependence on the type of transmission line.