Patent · US Expired

Strip transmission line having a tunable electric length

US5510756A · kind A · utility

2Cited by

3References

5Claims

0Family size

Assignee

AFT Advanced Ferrite Technology · DE

Inventors

Wolfgang Arnold · Murrhardt, DE
Erich Pivit · Allmersbach im Tal, DE
Wolfgang Weiser · Aspach, DE
Seigbert Martin · Oppenweiler, DE

Key dates

Filing date	Oct 12, 1994
Grant date	Apr 23, 1996
Priority date	—
Expiry date	Oct 12, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH01P1/19
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A strip transmission line for guiding a wave therein, including a strip-shaped inner conductor; an outer conductor surrounding the inner conductor with a clearance; a ferrite coating carried on at least one of the conductors; and at least one throughgoing slot provided in the inner and outer conductors for dividing the inner and outer conductors into at least two inner conductor sections and at least two outer conductor sections. The slots extend in a direction of wave propagation, whereby a variable current applied to the inner and outer conductors flows in one direction in one of the inner and outer conductor sections and returns in an opposite direction in another of the inner and outer conductor sections for generating a variable premagnetizing field within the strip transmission line between the inner and outer conductors to vary an electric length of the strip transmission line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.