基于宽带射频接收机功能电路的虚假响应分析  

Analysis on Spurious Response Based on Functional Circuit of Wideband RF Receiver

作　　者：漆家国[1] 

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《无线电工程》2016年第7期84-88,共5页Radio Engineering

摘　　要：虚假响应是衡量宽带射频接收机性能的一项重要指标。从频率变换角度对宽带射频接收机的架构进行分类,并以组成宽带射频接收机架构的功能电路为载体,把虚假响应类别归纳为频率设计、非线性失真和电磁兼容3个方面。从宽带射频接收机的方案设计和模块电路设计对这3类虚假响应的机理进行分析,给出了在工程实现上避免或减小射频宽带接收机虚假响应的具体措施。The spurious response is an important index to judge the performance of wideband RF receivers. By classifying wideband RF receiver framework from frequency conversion and using functional circuit forming the framework as the carrier,the spuri- ous response is divided into such three aspects as frequency design, non-linear distortion and EMC.The mechanization of these three types of spurious response is analyzed in the design on wideband RF receivers and functional circuits, and the specific measures are given so as to avoid or reduce the spurious response of wideband RF receiver in the engineering.

关 键 词：虚假响应 宽带射频接收机 频率设计 非线性失真 电磁兼容 

分 类 号：TN850[电子电信—信息与通信工程]