某型双频接收机混频中放组件的研制  

The mixing and IF amplifiers module of a dual-frequency receiver

作　　者：邓凯华[1,2] 

机构地区：[1]中国电子科技集团公司第十六研究所,合肥230043 [2]中国电子科技集团公司低温电子技术研发中心,合肥230043

出　　处：《低温与超导》2012年第8期90-92,共3页Cryogenics and Superconductivity

摘　　要：介绍了S、X波段带数字控制衰减器的混频中放单元设计方法,带内增益平坦度≤±0.5dB,功率输出1dB压缩点≥15dBm;介绍了放大器增益的分配思路、数控衰减器的工作原理、电路的实现方法及电路制版后装配调试和测试结果,满足设计要求。A design method of mixing and IF amplifier in digit -controlling attenuator at S and X waveband was put forward. The ripple of gain is ≤±0.5dB, power compresssion at ldB was ≥15dBm. In the same time, the IF amplifier gain distribution, numerical control attenuator, circuit working principle and realization method and circuit debugging results were provided in this paper.

关 键 词：混频器 中频放大器 数控衰减器 

分 类 号：TN941.1[电子电信—信号与信息处理]