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:
Sep. 30, 2014
Filed:
Feb. 12, 2010
Dominique Lo Hine Tong, Rennes, FR;
Raafat Lababidi, Tok-Tripoli, LB;
François Baron, Thorigne-Fouillard, FR;
Ali Louzir, Rennes, FR;
Bernard Jarry, Chaleix, FR;
Bruno Barelaud, Isle, FR;
Julien Lintignat, Limoges, FR;
Dominique Lo Hine Tong, Rennes, FR;
Raafat Lababidi, Tok-Tripoli, LB;
François Baron, Thorigne-Fouillard, FR;
Ali Louzir, Rennes, FR;
Bernard Jarry, Chaleix, FR;
Bruno Barelaud, Isle, FR;
Julien Lintignat, Limoges, FR;
Thomson Licensing, , FR;
Abstract
The invention relates to a filtering network in HR-Si silicon technology defined by at least one cut-off frequency and comprising an input terminal for receiving the signal to be filtered and an output terminal for delivering a filtered signal. The network comprises a first ground line connected by its ends to first and second ground points connected directly to the ground plane, a second ground line connected via its ends to third and fourth ground points directly connected to the ground plane, a plurality of L/C resonant elements connected in parallel and linked via one end to one of the two ground lines and via the other end between them, by means of coupling inductors which thus create transmission zeros. Each ground line forming inductive elements via inductances the network comprises capacitive elements in series with at least some of said inductive elements, the value of the capacitive elements being selected so that the resonant frequency of the inductive and capacitive elements in series corresponds to a frequency lying outside of the bandwidth.