双增益对数中频放大器  

Double Gain Logarithmic Intermediate Frequency Amplifier

作　　者：杨俊华[1] 张大彪[1] 

机构地区：[1]河北师范大学职业技术学院电子系,石家庄050031

出　　处：《电子科技大学学报》2002年第6期566-570,共5页Journal of University of Electronic Science and Technology of China

摘　　要：介绍了一种用于动目标显示雷达接收机的性能优良的双增益对数中频放大器,讨论了其电路的特点和调试方法。给出了单级电路原理图和利用Electronics Workbench5.0c仿真调试后的单级幅频特性与整机幅频特性图,通过分析估算了放大器电路的性能指标,并指出存在的问题。This paper presents a good double gained logarithmic IF amplifier. It can be used for the radar receiver that displays the moving target. The circuit property and the adjusting method are discussed in this paper. It also provides the unit circuit diagram and the total output characteristic with Electronics Workbench 5.0c.It gives some targets for function of circuit and points out some problems.

关 键 词：增益 对数放大器 中频放大器 接收机电路 

分 类 号：TN850.3[电子电信—信息与通信工程]