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. 24, 2008
Filed:
Nov. 26, 2003
Dominique Lo Hine Tong, Rennes, FR;
Charline Guguen, Rennes, FR;
Walid Karoui, Toulouse, FR;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
The invention proposes an H-plane filter with inductive irises which exhibits a quasi-elliptic response while retaining the same compactness as a filter having a Chebyshev response. The invention furthermore makes it possible to use a large number of transmission zeros. For this purpose, there is proposed a waveguide filter comprising at least one cavity delimited by at least two inductive irises. The filter furthermore comprises at least one floating insertplaced in one of the inductive irises. The invention is also a process for manufacturing the waveguide filter incorporating at least one insert.