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. 22, 2002
Filed:
Dec. 30, 1997
Applicant:
Inventor:
Stefan Rust, Senden, DE;
Assignee:
DaimlerChrysler Aerospace AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/207 ;
U.S. Cl.
CPC ...
H01P 1/207 ;
Abstract
A band-pass filter for a waveguide, which additionally serves as a blocking filter for the concerted suppression of interference frequencies. In addition to a centrally arranged aperture ( ), a waveguide aperture has two identically designed apertures ( ), which are laid out for natural resonance for an interference frequency f (ind S ) to be blocked by the waveguide filter, and are arranged symmetrical to the central aperture opening ( ). In waveguide devices, the invention is used to meet the statutory frequency specifications and simultaneously suppress interference frequencies.