【摘要】 提出了实现在一个2.4GHz零中频接收机中的一种正交相位自校准方法.这种方法基于一个采用提出的正交相位检测器的延迟锁定环路来大大减小正交相位误差.该接收机采用0.18μmCMOS工艺实现.测试结果显示正交相位误差可以被校准到1°以内,满足了系统的要求.更多还原

【Abstract】 An automatic IQ phase calibration method implemented in a 2.4GHz direct conversion receiver is proposed.It uses a delay locked loop (DLL) with a proposed quadrature phase detector to greatly reduce the phase error.The receiver is fabricated in a 0.18μm CMOS process.Measurements show that the IQ phase error can be calibrated within 1°,which satisfies the system requirement.更多还原