抗干扰跳频滤波器的小型化仿真设计  

Simulation and Design of Miniaturized Anti-interference Frequency Hopping Filter

作　　者：张智奇 许洋[1] 张俊 孙伟[1] 王德全 Zhang Zhiqi;Xu Yang;Zhang Jun

机构地区：[1]北方自动控制技术研究所

出　　处：《安全与电磁兼容》2023年第2期49-52,共4页Safety & EMC

摘　　要：为了提升装备在复杂电磁环境下的生存能力,解决手持式通信终端在强电磁干扰下通信质量差、体积笨重等问题,该文提出一种抗电磁干扰的跳频滤波器的仿真和设计方案。该模型基于双调谐LC滤波单元和变容二极管工作原理,通过采用等效电路变换和等效电路吸收等手段,简化电路模型和优化电路布板,设计了频率范围在225~525 MHz的微型跳频滤波器,并使用先进设计系统(ADS)进行了仿真验证,在满足插入损耗、频率选择性、带外抑制等关键指标下实现了抗干扰跳频滤波器尺寸的小型化设计。In order to improve the survivability of equipment in complex electromagnetic environment,solve the problems of poor communication quality and bulky volume of handheld communication terminals under strong electromagnetic interference,the simulation and design scheme of frequency hopping filter against electromagnetic interference is proposed.Based on the working principle of dual tuned LC filter unit and varactor diode,by adopting equivalent circuit transformation and equivalent circuit absorption,simplifying the circuit model and optimizing the circuit layout,a micro frequency hopping filter working in the frequency range of 225~525 MHz is designed,and simulated and verified with ADS software,which meets the requirements of insertion loss,frequency selectivity.The miniaturization design of anti-interference frequency hopping filter size is realized under the key indicators such as out of band suppression.

关 键 词：抗干扰 跳频滤波器 ADS 插入损耗 频率选择性 

分 类 号：TN713[电子电信—电路与系统]