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:
Jun. 06, 2017
Filed:
Nov. 14, 2013
Kathrein-austria Ges.m.b.h., Niederndorf, AT;
Bernd Schöninger, Kufstein, AT;
Kathrein-Austria Ges.m.b.H, Niederndorf, AT;
Abstract
A temperature-compensated high frequency filter of coaxial construction comprises at least one resonator having an inner conductor and an outer conductor housing. A compensation device made of a second material has a second coefficient of thermal expansion. The compensation device comprises a wall section, which extends in an axial direction and is variable in length in this direction in the event of a temperature change. The wall section is part of the housing wall configured in the manner of an intermediate layer or an upper-most layer located adjacent to the housing cover. The wall section may extend in an axial direction or in a direction transversely thereto and be variable in length in this direction in the event of a temperature change. The wall section is an integral part of the housing cover or is connected to the housing cover, or forms the housing cover having convex outwardly directed curvature.