全集成CMOS SCA接收机单片化探讨  

Research of Fully Integrated CMOS SCA Receiver

作　　者：徐建[1] 王志功[1] 马力[1] 曾贤文[1] 

机构地区：[1]东南大学射频与光电集成电路研究所,南京210096

出　　处：《电信科学》2011年第2期96-99,共4页Telecommunications Science

基　　金：中国博士后基金资助项目(No.20090461048);江苏省博士后科研资助项目(No.0901022C);东南大学博士后重点资助项目

摘　　要：本文对调频副载波(SCA)广播接收机的单片化设计进行了探讨,提出了一种新的适合CMOS工艺的全集成SCA接收机结构。接收机采用Weaver-零中频结构实现下变频和二次解调功能,节省了片外镜像抑制滤波器,大大提高了接收机的集成度,降低了接收机的成本和功耗,显示了广阔的潜在应用前景。A highly integrated wireless receiver of subsidiary communication authorization（SCA） was investigated in this article.A novel fully integrated SCA receiver architecture suitable for CMOS process was proposed.The new receiver adopts Weaver-zero-IF down-conversion topology and two demodulations on chip.The external image-rejection filter is no needed and it greatly increases the integration and lowered the power consumption and cost.It shows the potential prospects of application.

关 键 词：调频附加信道广播(SCA) 无线接收机 射频 零中频 Weaver接收机 CMOS 

分 类 号：TN938[电子电信—信号与信息处理]