High-altitude nuclear electromagnetic pulse protection device for short-wave radio stations

Abstract

A short-wave radio station high-altitude nuclear electromagnetic pulse protection device belongs to the technical field of electromagnetic pulse protection, and the invention particularly relates to a short-wave radio station high-altitude nuclear electromagnetic pulse protection device. The invention provides a short-wave radio station high-altitude nuclear electromagnetic pulse protection device with good protective effect on strong electromagnetic pulse. The short-wave radio station high-altitude nuclear electromagnetic pulse protection device comprises a gas discharge tube GDT1. The short-wave radio station high-altitude nuclear electromagnetic pulse protection device has the structural features that one end of the GDT1 is respectively connected with one end of an antenna and one end of a resistor R5, the other end of the GDT1 is grounded, and the other end of the R5 is respectively connected with one end of a gas discharge tube GDT2, a toggle terminal of a controlled end of a relay, and one end of a capacitor C1; the other end of the GDT2 is connected with one end of a first voltage dependent resistor, the other end of the first voltage dependent resistor is connected with one end of a second voltage dependent resistor, the other end of the second voltage dependent resistor is connected with one end of a third voltage dependent resistor, and the other end of the third voltage dependent resistor is grounded.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic pulse protection, in particular to a high-altitude nuclear electromagnetic pulse protection device for short-wave radio stations. Background technique [0002] Strong electromagnetic pulses will form surge currents in short-wave, ultra-short-wave and communication equipment. The rising edge time is about nanoseconds, the pulse duration can reach hundreds of nanoseconds, and the radiation field strength can reach hundreds of kilovolts / meter. , the existing lightning protection facilities cannot achieve such a response speed, causing huge damage to the equipment, especially the coupling into the receiver through the antenna is the most harmful. [0003] Because the effect of high-altitude nuclear electromagnetic pulse (HEMP) environment on short-wave radio stations is more serious than that of conventional electronic countermeasures, and even causes permanent damage to equipment, this puts f...

AI Technical Summary

Problems solved by technology

Due to the lack of research platforms and conditions such as test equipment, we have seldom researched on the high-altitude nuclear electromagnetic pulse protection of the whole system of short-wave radio stations, resulting in almost no short-wave communication equipment considering the system survivability in the environment of high-altitude nuclear electromagnetic pulse interference

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