Patent Number: 7,102,456

Title: Transmission line

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.

Inventors: Berg; Hakan (Goteborg, SE)

Assignee: Telefonaktiebolaget LM Ericsson (publ)

International Classification: H03H 7/38 (20060101)

Expiration Date: 9/05/02018