公开(公告)号：US09379929B2

公开(公告)日：2016-06-28

申请号：US14220425

申请日：2014-03-20

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Han Wang ,  I-Liang Lin ,  Liang Zhao ,  Hong Sun Kim ,  Yi Zeng

IPC: H04B1/10 ,  H04L27/34 ,  H04L27/36 ,  H03D3/00

CPC classification number: H04L27/3405 ,  H03C2200/0041 ,  H03D3/008 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.

Abstract translation: 描述用于执行残余边带校准的电路。 该电路通常包括相位不平衡检测电路。 相位不平衡检测电路可以包括限幅器。 相位不平衡检测电路可以与增益不平衡无关。 电路还可以包括相位不平衡校正电路。 相位不平衡检测电路可以控制同相路径和正交路径之间的耦合。