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:
Apr. 15, 2003
Filed:
Jun. 08, 2001
Indra Ghosh, Cologne, DE;
Ulrich Poppe, Duren, DE;
Norbert Klein, Monchengladbach, DE;
Klaus Schieber, Backnang, DE;
Other;
Abstract
The invention concerns a tunable cavity resonator that comprises a resonator body ( ) defining a cavity ( ), a tuning plate ( ) whose position with respect to the resonator body ( ) is modifiable and which influences the resonance frequency (&ohgr; ) of the cavity resonator, and an adjustment device ( ) for mechanically changing the position of the tuning plate ( ), which is characterized in that a conversion ratio mechanism ( ) couples the adjustment device ( ) to the tuning plate ( ) in terms of movement and converts a linear excursion (&Dgr;x ) generated by the adjustment device ( ), at a predefined ratio (U), into a reduced linear excursion (&Dgr;x ) that acts on the tuning plate ( ), the conversion ratio mechanism ( ) comprising a first spring element ( ) whose end toward the adjustment device is deflectable with the linear excursion (&Dgr;x ) generated by the adjustment device ( ), and a second spring element ( ) which impinges with an opposing force on the end of the first spring element ( ) remote from the adjustment device.