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1. 发明授权

US08461901B1 Harmonic reject mixer with active phase mismatch compensation in the local oscillator path 有权
标题翻译：在本地振荡器路径中具有有源相位失配补偿的谐波抑制混频器
公开(公告)号：US08461901B1
公开(公告)日：2013-06-11
申请号：US13399221
申请日：2012-02-17
申请人： Matthew A. Morton , Jonathan P. Comeau , Edward Wade Thoenes
发明人： Matthew A. Morton , Jonathan P. Comeau , Edward Wade Thoenes
IPC分类号： H03D13/00
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1483 , H03D7/165 , H03D2200/0086
摘要： A harmonic rejection mixer having a phase rotator fed by a local oscillator signal. The local oscillator signal has a reference frequency. The phase rotator produces a plurality of output signals, each one of the signals having a common frequency related to the reference frequency and having different relative phase shifts. A plurality of mixer sections, each one of the sections being fed an input signal and a corresponding one of the plurality of output signals mixes the local oscillator signal with the corresponding one of the plurality of output signals fed thereto. A combiner combines the mixer signal from the plurality of mixer sections into a composite output signal. A detector detects energy in a harmonic of the composite signal and for adjusting the output signal of the phase rotator to reduce the selected harmonic of the composite signal.
摘要翻译：具有由本地振荡器信号馈送的相位旋转器的谐波抑制混频器。本地振荡器信号具有参考频率。相位旋转器产生多个输出信号，每个信号具有与参考频率相关的共同频率并且具有不同的相对相移。多个混频器部分，每个部分被馈送输入信号，并且多个输出信号中的对应的一个输出信号将本地振荡器信号与馈送到其的多个输出信号中的对应的一个混合。组合器将来自多个混频器部分的混频器信号组合成复合输出信号。检测器检测复合信号的谐波中的能量，并用于调整相位旋转器的输出信号以减小复合信号的选定谐波。

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