Patent · US Expired

Microwave junction circulator

US4810979A · kind A · utility

7Cited by

8References

23Claims

0Family size

Assignee

Ant Nachrichtentechnik GmbH · DE

Inventors

Gunter Morz · Ludwigsburg, DE
Wolfgang Weiser · Aspach, DE
Sigmund Lenz · Aspach, DE
Erich Pivit · Allmersbach im Tal, DE

Key dates

Filing date	Oct 2, 1987
Grant date	Mar 7, 1989
Priority date	—
Expiry date	Oct 2, 2007

Classification

Technology area (CPC H)Electricity
CPC primaryH01P1/39
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A junction circulator suitable for high power, high-frequency use has a microwave junction zone which is penetrated by a static magnetic field. Disposed in the microwave junction zone is a ferromagnetic resonator composed of different dielectric media, at least one of which has ferromagnetic characteristics. The interfaces between the various dielectric media form three-dimensional bodies which extend over the entire height of the junction zone and which have cross sections that do not change in the direction of the static magnetic field. These interfaces may be provided by parallel ferrite rods, or a ferrite body with parallel bores.

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