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:
Nov. 12, 1991
Filed:
Mar. 02, 1990
Applicant:
Inventor:
Douglas R Jachowski, Redwood City, CA (US);
Assignee:
Orion Industries, Inc., Solon, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333202 ; 3332191 ; 333235 ; 333 35 ;
Abstract
A multi-resonant notch filter incorporates a stepped impedance transmission line with impedance values going from a relatively low value and increasing upward to a relatively high value then back down to a relatively low value again. A plurality of resonant cavitites is coupled to the relatively high central impedance line section of the filter. Other resonators can be coupled to lower impedance sections of the transmission line.