Patent · US Active

Frequency translated filter

US8301101B2 · kind B2 · utility

4Cited by

6References

29Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Ahmad Mirzaei · Orlando, US
Hooman Darabi · Irvine, US
John Leete · Tecate Mission Road, US

Key dates

Filing date	May 22, 2009
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Oct 8, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH03H19/004
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Embodiments of a frequency translated filter (FTF) are presented. An FTF includes a passive mixer and a baseband impedance. The baseband impedance includes a network of one or more passive components (e.g., resistors, inductors, and capacitors) that form a low-Q filter. The passive mixer is configured to translate the baseband impedance to a higher frequency. The translated baseband impedance forms a high-Q filter and is presented at the input of the FTF. The FTF can be fully integrated in CMOS IC technology (or others, e.g., Bipolar, BiCMOS, and SiGe) and applied in wireless receiver systems including GSM, Wideband Code Division Multiple Access (WCDMA), Bluetooth, and wireless LANs (e.g., IEEE 802.11).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.