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:
Jul. 14, 1981
Filed:
Jun. 08, 1979
Georg Spinner, Feldkirchen-Westerham, DE;
Leo Treczka, Munich, DE;
Abstract
The disclosure concerns an HF attenuator for a hollow waveguide or a coaxial conductor. A rod of dissipative ceramic material is disposed along the length of the attenuator, so that moving along the length of the attenuator, the ceramic material increasingly defines or replaces at least one wall of the hollow waveguide or at least one of the two opposite sides of the coaxial conductor. A coolant passage may be provided along the rods of ceramic material. The ceramic material may take other forms, such as leaves and annular rings. In another embodiment for use in a waveguide, at least one wall of the longitudinal opening through the waveguide is defined by ceramic leaves, whose extent of projection into the opening is varied for HF attenuation.