一种C波段雷达接收机防护技术研究

Research on a C-band radar receiver protection technology

随着战场环境日益复杂,尤其是高对抗环境下,对现有各类装备均产生了极大威胁。设计了一款C波段雷达接收机保护器,采用充气微波开关管+波导同轴转换的结构设计,创新性地提出将固态限幅器芯片融合在波导同轴转换内部,限幅芯片采用级联的形式,提高了微带限幅器的承受功率。实现接收机保护器耐受功率10 MW以上,响应时间5 ns以内,不仅可用于雷达发射期间接收机防护,还可应对外部电磁干扰、高功率微波攻击。

As the battlefield environment becomes increasingly complex,especially in high-confrontation environments,it poses a great threat to all types of existing equipment.This article designs a C-band radar receiver protector,which adopts the structural design of inflatable microwave switch tube+waveguide coaxial conversion,innovatively integrates the solid-state limiter chip into the waveguide coaxial convertor,while the limiting chip adopts a cascaded form to increase the power of the microstrip limiter.With a power resistance of over 10 MW and a response time of less than 5 ns,the protector is not only used for receiver protection during radar transmission,but also can cope with external electromagnetic interference and high-power microwave attacks.