Invention Grant
- Patent Title: Compensating circuit for a mixer stage
- Patent Title (中): 混频器补偿电路
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Application No.: US11889986Application Date: 2007-08-17
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Publication No.: US07809348B2Publication Date: 2010-10-05
- Inventor: Michael Amann , Thorsten Fahlbusch , Leo Friesen , Andreas Leistner , Juergen Schnabel
- Applicant: Michael Amann , Thorsten Fahlbusch , Leo Friesen , Andreas Leistner , Juergen Schnabel
- Applicant Address: DE Heilbronn
- Assignee: Atmel Automotive GmbH
- Current Assignee: Atmel Automotive GmbH
- Current Assignee Address: DE Heilbronn
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: DE102006039704 20060817
- Main IPC: H04Q1/10
- IPC: H04Q1/10 ; H04Q1/40

Abstract:
A compensating circuit for a mixer stage is provided, wherein the mixer stage has an input stage to which an input signal for mixing can be applied and has, following the input stage, a switching stage for mixing a differential input signal—obtained from the input stage as a function of the input signal—with an oscillator signal, wherein the input of the compensating circuit can be connected to an input signal terminal of the input stage and the output of the compensating circuit can be connected to an input signal terminal of the switching circuit at which the differential input signal obtained by means of the input stage is present, and wherein a compensating signal obtained by means of a compensating stage of the compensating circuit, in particular for compensating intermodulation products, can be produced by the compensating circuit at its output. The compensating circuit has a compensating input stage with means for influencing an amplitude and/or phase of the input signal, by which means the compensating stage can be supplied with a modified input signal.
Public/Granted literature
- US20080070538A1 Compensating circuit for a mixer stage Public/Granted day:2008-03-20
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