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:
Jan. 05, 1988
Filed:
Jul. 29, 1986
Erich Pivit, Allmersbach im Tal, DE;
Wolfgang Hauth, Backnang, DE;
Gunter Morz, Ludwigsburg, DE;
Sigmund Lenz, Aspach, DE;
ANT Nachrichtentechnik GmbH, Backnang, DE;
Abstract
A waveguide junction circulator for a high power application at a high operating frequency. The circulator includes a plurality of connecting waveguides, each of which has a standard height dimension corresponding to the operating frequency; a resonance cavity; a plurality of spaced and cooled, superposed metal plates covered with ferrite discs disposed in the cavity; a magnet disposed outside the cavity for generating a magnetic field oriented perpendicular to the ferrite discs and penetrating the cavity; and a plurality of junction arms each having one end communicating with the cavity and another end forming a connection with a respective one of the plurality of connecting waveguides. The circulator has a height dimension in its region penetrated by the magnetic field that is reduced by at least 20% compared to the standard height dimension of the connecting waveguides. Each connection presents a transition from the connecting waveguide to the junction arm that has a sudden change in cross section from the reduced height of the circulator to the standard height of the connecting waveguide. Reactance elements are provided in the junction arms to form multi-section filters.