宽带接收机中的倍频程电调陷波器设计  

Design of Octave Tunable Notch Filter in Wide Band Receiver

作　　者：林逸群[1] 刘茉莉[1] 张锦旗[1] 卢胜军[1] 

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2015年第3期40-42,共3页Communication Countermeasures

摘　　要：设计了一种吸收式电调陷波器。首先对电容型导纳变换器和电感型导纳变换器的优缺点进行了仿真分析,随后根据仿真优化结果制作了工作频段为200-400MHz的电调陷波器,该滤波器在频率调谐范围内,3dB带宽小于20MHz,陷波深度大于20dB,测试及仿真结果吻合良好,且具有结构简单、工艺易实现等优点。In this paper, an absorptive Tunable Notch Filter is presented. Firstly, the advantages or disadvantages of the inductive admittance inverter and the capacitive admittance inverter are analyzed by simulation; Next, according to the simulation optimization results, we manufacture a tunable notch filter which operates over a band width from 200MHz to 400MHz.The fiker exhibits a 3dB-band less than 20MHz ,notch attenua- tion more than 20dB across the 200MHz-400MHz band. The simulated results are good agreement with the measured ones. And also, this design has a relatively simple structure which is easy to implement in technology.

关 键 词：导纳变换器 吸收式 电调陷波器 

分 类 号：TN713[电子电信—电路与系统]