公开(公告)号：US20130128931A1

公开(公告)日：2013-05-23

申请号：US13299273

申请日：2011-11-17

Applicant: Chung-Chieh Lin ,  Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

Inventor： Chung-Chieh Lin ,  Shih Hsiung Mo ,  Yan Cui ,  Chung-Hsing Chang

IPC: H04L25/49 ,  H04B1/38

CPC classification number: H04B17/11 ,  H04B17/104

Abstract: One embodiment of the present invention provides a quadrature-mixing transmitter for wireless communication. The transmitter includes a quadrature modulator comprising an in-phase (I) channel and a quadrature (Q) channel, a calibration-signal generator configured to generate calibration signals that are sent to the I channel and the Q channel, and a calibration circuit configured to calibrate an imbalance between the I channel and the Q channel. The modulator, the calibration-signal generator, and the calibration circuit are located on a same integrated circuit (IC) chip, thereby facilitating on-chip calibration of the imbalance between the I channel and the Q channel.

Abstract translation: 本发明的一个实施例提供一种用于无线通信的正交混频发射机。 所述发射机包括正交调制器，包括同相（I）信道和正交（Q）信道，校准信号发生器被配置为产生发送到I信道和Q信道的校准信号，以及校准电路配置 以校准I通道和Q通道之间的不平衡。 调制器，校准信号发生器和校准电路位于相同的集成电路（IC）芯片上，从而便于I通道和Q通道之间的不平衡的片上校准。