Invention Grant
- Patent Title: Second-order filter with notch for use in receivers to effectively suppress the transmitter blockers
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Application No.: US14793129Application Date: 2015-07-07
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Publication No.: US09413326B2Publication Date: 2016-08-09
- Inventor: Umut Basaran , Josef Schmal , Stefan Herzinger , Herbert Stockinger , Volker Thomas
- Applicant: Intel Deutschland GmbH
- Applicant Address: DE Neubiberg
- Assignee: INTEL DEUTSCHLAND GMBH
- Current Assignee: INTEL DEUTSCHLAND GMBH
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Associates, LLC
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H03H7/01 ; H03H7/06 ; H03H7/12 ; H03H11/12 ; H04B1/525

Abstract:
The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.
Public/Granted literature
- US20150318836A1 SECOND-ORDER FILTER WITH NOTCH FOR USE IN RECEIVERS TO EFFECTIVELY SUPPRESS THE TRANSMITTER BLOCKERS Public/Granted day:2015-11-05
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