基于分频器的开关滤波器组件的设计  

Desigh and Fabrication of Switch Filter Bank Based on Frequency Divider

作　　者：魏然[1] 朱臣伟 钱兴成[1] 

机构地区：[1]南京电子器件研究所,南京210016

出　　处：《固体电子学研究与进展》2014年第1期60-64,共5页Research & Progress of SSE

摘　　要：选频网络广泛用于通信领域,开关滤波器是选频网络中的关键部件。主要介绍了利用单刀多掷开关、分频器和带通滤波器将一个宽带信号根据频率控制码分成多路输出,各路的信号频段均不相同,并通过补偿技术保障各路信号的输出平坦度。组件的测试结果:杂散抑制大于60dBc;输出信号平坦度常温下小于1.5dB,全温小于3dB;开关时间小于100ns;输入输出驻波小于1.5。The frequency selection network, with switching filter as its critical component, is led in communication area. In this paper, the design of dividing a wideband signal into tput is introduced, which is realized with the single-pole multi-throw switch, frequen- nd bandpass filter. Each output works on different frequency band, and the compen- liques are used to obtain eligible amplitude flatness. Test results show 〉60 dBc spuri ;sion; 〈1.5 dB output flatness at room temperature, and 〈3 dB at full temperature; 〈100 ns switching time; 〈1.5 I/O VSWR

关 键 词：单刀多掷开关 分频器 平坦度 隔离度 滤波器 

分 类 号：TN74[电子电信—电路与系统] TN713