超外差式接收机变频技术研究与设计  

Research and Design of Superheterodyne Receiver Frequency Conversion Technology

作　　者：杨翠娥[1] 

机构地区：[1]太原工业学院,山西太原030008

出　　处：《山西电子技术》2018年第1期62-64,共3页Shanxi Electronic Technology

摘　　要：变频技术是超外差式接收机中的关键技术。本文针对1200MHz的中频提出了一次变频和二次变频二种模式,给出了其结构组成,并对两种模式进行了仿真和测试研究,结果表明:一次变频模式性能最优。适合应用于实际项目工程。Frequency conversion technology is a key technology in the superheterodyne receiver. In this paper, two modes of primary frequency conversion and secondary frequency conversion are proposed for 1200mhz interme- diate frequency. Its structure is given and two modes are made with simulation and test research. The results show that the frequency conversion model is the optimal performance that suitable for practical project engineering.

关 键 词：变频 中频 ADS 

分 类 号：TN911.4[电子电信—通信与信息系统]