一种宽带吸波型电磁脉冲防护器件设计  

Design of a broadband absorptive electromagnetic pulse protection device

作　　者：黄瑞祺 刘继斌[1] 郑黎明 楼水勇 李翔 刘培国[1] Huang Ruiqi;Liu Jibin;Zheng Liming;Lou Shuiyong;Li Xiang;Liu Peiguo(College of Electronics Science and Technology,National University of Defense Technology,Changsha 410073,China;Putian Eastern Communications Group Co.,Ltd.,Hangzhou 310053,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073 [2]中电科东方通信集团有限公司,杭州310053

出　　处：《强激光与粒子束》2025年第1期53-58,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(62293491)。

摘　　要：在复杂电磁对抗环境中,对电子信息装备射频前端采取电磁防护措施以抵御强电磁干扰甚至损伤是必要的。针对现有防护器件在工作时反射超过阈值的强干扰信号,容易造成二次电磁威胁的问题,提出一种宽带吸波型电磁脉冲防护器件设计。通过在防护主路上引入微带线匹配枝节,实现电磁脉冲信号与输出端口隔离的同时,将其传输至匹配负载进行宽带吸收。在0.5 GHz至1.5 GHz(相对带宽>90%)内,实现了对低功率信号插入损耗小于1 dB,对电磁脉冲信号防护隔离度大于10 dB,同时输入端口回波损耗大于10 dB的良好性能。In complex electromagnetic countermeasure environments,it is necessary to take electromagnetic protection measures for the radio frequency front-end of electronic information equipment to resist strong electromagnetic interference and even damage.In response to the problem that existing protective devices reflect strong interference signals exceeding the threshold during operation,which can easily cause secondary electromagnetic threats,we propose a design for a broadband absorptive electromagnetic pulse protection device.By introducing a microstrip line matching stub in the main protection path,the electromagnetic pulse signal is isolated from the output port and transmitted to the matching load for broadband absorption.Within the frequency range of 0.5 GHz to 1.5 GHz(relative bandwidth>90%),the device achieves good performance with insertion loss less than 1 dB for low-power signals,electromagnetic pulse signal protection isolation greater than 10 dB,and input port return loss greater than 10 dB.

关 键 词：二极管 吸波型防护 电磁脉冲 微带线 宽带匹配枝节 

分 类 号：TN82[电子电信—信息与通信工程]