Invention Grant
- Patent Title: Area reduction techniques for saw-less receivers
- Patent Title (中): 无锯齿接收机的减小面积技术
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Application No.: US12485657Application Date: 2009-06-16
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Publication No.: US08224275B2Publication Date: 2012-07-17
- Inventor: Ahmad Mirzaei , Hooman Darabi
- Applicant: Ahmad Mirzaei , Hooman Darabi
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04L27/00
- IPC: H04L27/00

Abstract:
Embodiments of a SAW-less RF receiver front-end that includes a frequency translated notch filter (FTNF) are presented. An FTNF includes a passive mixer and a baseband impedance. The baseband impedance includes capacitors that form a low-Q band-stop filter. The passive mixer is configured to translate the baseband impedance to a higher frequency. The translated baseband impedance forms a high-Q notch filter and is presented at the input of the FTNF. The FTNF can be fully integrated in CMOS IC technology (or others, e.g., Bipolar, BiCMOS, and SiGe) and applied in wireless receiver systems including EDGE/GSM, Wideband Code Division Multiple Access (WCDMA), Bluetooth, and wireless LANs (e.g., IEEE 802.11). In addition, embodiments of a multi-band SAW-less RF receiver front-end and techniques to share components of FTNFs included within the multi-band SAW-less RF receiver front-end are presented.
Public/Granted literature
- US20100317308A1 Area Reduction Techniques for Saw-Less Receivers Public/Granted day:2010-12-16
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