Invention Grant
- Patent Title: Integrated blocker filtering RF front end
- Patent Title (中): 集成封锁滤波RF前端
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Application No.: US12942415Application Date: 2010-11-09
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Publication No.: US08094025B2Publication Date: 2012-01-10
- Inventor: Aminghasem Safarian , Amin Shameli , Ahmadreza (Reza) Rofougaran , Maryam Rofougaran
- Applicant: Aminghasem Safarian , Amin Shameli , Ahmadreza (Reza) Rofougaran , Maryam Rofougaran
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick Harrison & Markison
- Agent Kevin L. Smith
- Main IPC: G08B13/14
- IPC: G08B13/14

Abstract:
A receiver architecture for canceling blocking signals in the receive path includes a low noise amplifier for receiving and amplifying an inbound RF signal to produce an amplified inbound signal, in which the inbound RF signal includes a modulated RF signal and a blocking signal, and a cancellation module for substantially canceling the blocking signal from the amplified inbound RF signal and substantially passing the modulated RF signal. The cancellation module cancels the blocking signal by generating an injection signal representative of the blocking signal, combining the blocking signal with the injection signal to produce an error signal, updating the injection signal based on the error signal and using the injection signal to cancel the blocking signal from the amplified inbound RF signal.
Public/Granted literature
- US20110051670A1 INTEGRATED BLOCKER FILTERING RF FRONT END Public/Granted day:2011-03-03
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