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:
Feb. 09, 2016
Filed:
Sep. 18, 2013
Applicant:
Stmicroelectronics SA, Montrouge, FR;
Inventors:
Jean-Christophe Ricard, Aveyron, FR;
Cedric Durand, St Martin D'heres, FR;
Frederic Gianesello, Saint Pierre d'Albigny, FR;
Assignee:
STMICROELECTRONICS SA, Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H03H 3/00 (2006.01); H03H 7/12 (2006.01); H03H 7/075 (2006.01); H03H 7/46 (2006.01);
U.S. Cl.
CPC ...
H03H 7/0138 (2013.01); H03H 3/00 (2013.01); H03H 7/0115 (2013.01); H03H 7/0161 (2013.01); H03H 7/075 (2013.01); H03H 7/12 (2013.01); H03H 7/1758 (2013.01); H03H 7/1766 (2013.01); H03H 7/1783 (2013.01); H03H 7/1791 (2013.01); H03H 7/463 (2013.01);
Abstract
A passive filter may include at least one elliptical filter unit and at least one asymmetric rejection filter unit coupled in series with the elliptical filter unit. The at least one asymmetric rejection filter unit may have a frequency response curve that includes a dip with different attenuations on either side, and an overshoot upon exiting the dip at the side with the lower attenuation.