Invention Grant
- Patent Title: Circuit for baseband harmonic rejection
- Patent Title (中): 基带谐波抑制电路
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Application No.: US14108745Application Date: 2013-12-17
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Publication No.: US09369261B2Publication Date: 2016-06-14
- Inventor: Yoshikazu Furuta , Mark Maria Albert Ingels
- Applicant: IMEC , RENESAS Electronics Corporation
- Applicant Address: BE Leuven JP Kanagawa
- Assignee: IMEC,RENESAS Electronics Corporation
- Current Assignee: IMEC,RENESAS Electronics Corporation
- Current Assignee Address: BE Leuven JP Kanagawa
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: EP12198069 20121219
- Main IPC: H04L27/20
- IPC: H04L27/20 ; H04L5/14 ; H04B1/04

Abstract:
A circuit for reducing counter-intermodulation in a modulated signal caused by an oscillator frequency and harmonics of a baseband signal is disclosed. The circuit comprises a first and a second baseband section arranged for generating a first and a second version of a baseband signal, the second version being phase shifted with respect to the first version. The circuit further comprises three signal paths comprising mixers for multiplication of the first and second version of the baseband signal with a local oscillator signal, so that three upconverted signals with rotated phase with respect to each other are obtained, and arranged for applying a scaling with a scaling factor corresponding to the rotated phases. The circuit further comprises a combination unit arranged for combining the three upconverted signals.
Public/Granted literature
- US20140169237A1 CIRCUIT FOR BASEBAND HARMONIC REJECTION Public/Granted day:2014-06-19
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