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:
Mar. 16, 2010
Filed:
Jan. 15, 2008
Wenjiang Zeng, Sunnyvale, CA (US);
Rong Liu, Fremont, CA (US);
Yupeng Chen, Sunnyvale, CA (US);
Wang-chang Albert Gu, Longwood, FL (US);
Wenjiang Zeng, Sunnyvale, CA (US);
Rong Liu, Fremont, CA (US);
Yupeng Chen, Sunnyvale, CA (US);
Wang-Chang Albert Gu, Longwood, FL (US);
California Micro Devices, Milpitas, CA (US);
Abstract
The present invention relates to a low pass filter incorporating coupled inductors to enhance stop band attenuation. In one embodiment, the coupled inductors are provided along with various capacitors to provide for superior performance within a smaller surface area of a semiconductor or ceramic integrated device. In a further specific embodiment, the capacitors are formed on an integrated device within an area on which entirely intertwined inductors are formed. In another embodiment, at least one further pair of coupled inductors is included to create additional frequency attenuation notches, as well as a wide stop-band.