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:
Dec. 08, 2020
Filed:
Mar. 15, 2018
Applicant:
Spinner Gmbh, Munich, DE;
Inventors:
Kai Numssen, Frankfurt, DE;
Jörn Pfeifer, Munich, DE;
Martin Lorenz, Kempten, DE;
Christian Orlob, Tuntenhausen, DE;
Christoph Neumaier, Baiern, DE;
Natalie Spaeth, Rosenheim, DE;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/208 (2006.01); H01P 7/10 (2006.01);
U.S. Cl.
CPC ...
H01P 1/2086 (2013.01); H01P 1/2084 (2013.01); H01P 7/10 (2013.01); H01P 7/105 (2013.01);
Abstract
A quad-mode microwave or RF bandpass filter comprises a housing of a conductive material defining a cylindrical cavity and containing a cylindrical dielectric resonator defined by a parallel pair of face surfaces. The dielectric resonator is held within the housing between a pair of support plates of a dielectric material. Internal coupling elements are provided above and/or below the dielectric resonator for coupling between resonating modes. Further mode coupling elements are protruding into the housing.