电调滤波器频率校准装置的设计与实现  

Design and Implementation of Frequency Calibration Device Used in Electrically Tunable Filter

作　　者：李建强[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2010年第11期62-64,共3页Radio Engineering

摘　　要：针对电调腔体滤波器在确定中心频率时的调试、维护工作量大的问题,设计了辅助调节电调滤波器中心频率的装置——校频单元。给出了校频单元的设计模型,并对其进行了理论分析。在此基础上给出了校频单元的一种具体设计方案,并进行了实际电路设计。介绍了校频单元的具体实现方式,给出了实际电路的测试结果,并对结果进行了分析。分析表明,校频单元可以实现对电调滤波器中心频率的调节功能。目前校频单元已得到实际应用。It needs large amount of debugging and maintenance in an electrically tunable cavity filter to determine its center frequency.To solve this problem,an auxiliary device called frequency calibration unit（FCU）is designed.The design model and theoretical analysis of FCU are introduced,based on which the design scheme and specific implementation of FCU are obtained.The test results of a physical FCU circuit are given.By analyzing these results,it＇s validated that the FCU is appropriate for tuning the centre frequency of electrically tunable cavity filter.Currently,the FCU has been successfully applied.

关 键 词：电调滤波器 腔体滤波器 频率校准 校频单元 

分 类 号：TN876.2[电子电信—信息与通信工程]