HF/VHF frequency-range ultra wide band electromagnetic pulse protection module

An electromagnetic pulse and ultra-broadband technology, applied in the field of strong electromagnetic pulse protection, can solve the problem of lack of protection, achieve a low square coefficient, prolong the rising edge time, and improve the effect of reflection

Active Publication Date: 2012-04-04
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ultra-broadband electromagnetic pulses, due to its extremely fast rising time (up to 0.1ns, pulse width is only 1ns), and the response time of the fastest suppression device TVS tube is only 1ns at present, and its rising time is The ultra-broadba

Method used

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  • HF/VHF frequency-range ultra wide band electromagnetic pulse protection module
  • HF/VHF frequency-range ultra wide band electromagnetic pulse protection module
  • HF/VHF frequency-range ultra wide band electromagnetic pulse protection module

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Embodiment Construction

[0015] The composite strong electromagnetic pulse comprehensive protection module for the ultrashort wave communication frequency band of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] figure 1 It is a structural schematic diagram of an embodiment of the present invention, including a coaxial cavity low-pass filter, a gas discharge tube, a high-power TVS tube and a low-power TVS tube.

[0017] The coaxial cavity low-pass filter includes a metal casing, and a plurality of copper wires 3 and copper columns 4 connected in series between the copper wires are arranged in the metal casing, wherein the additional inductance of the copper wires constitutes the inductance of the entire coaxial cavity low-pass filter; The copper column 4 is covered with a dielectric tube 5 that is insulated from the metal shell to prevent the copper column from being connected to the metal shell of the filter. The surface-to-surfac...

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Abstract

The invention provides an HF/VHF frequency-range ultra wide band electromagnetic pulse protection module comprising a coaxial cavity low-pass filter, a gas discharge tube, a high-power TVS (Transient Voltage Suppressors) tube and a low-power TVS tube, wherein the two ends of the coaxial cavity low-pass filter are connected to coaxial ports through copper leads, respectively; the gas discharge tube and the high-power TVS tube are connected in series and then connected between the copper lead at one end of the coaxial cavity low-pass filter and a ground wire; and the low-power TVS tube is connected between the copper lead at the other end of the coaxial cavity low-pass filter and the ground wire. In the coaxial connection manner, the module can be conveniently mounted on a coaxial signal wire between an outdoor cable (including an antenna) and an indoor electronic device so as to discharge ultra wide band electromagnetic pulses coupled to the signal cable; therefore, the module is capable of protecting HF/VHF frequency-range sensitive devices from the damage of the pulse energy.

Description

technical field [0001] The invention belongs to the technical field of strong electromagnetic pulse protection, and in particular relates to an ultra-wideband electromagnetic pulse protection module with wide applicability for HF / VHF frequency band sensitive equipment, which can be used for HF / VHF frequency band electronic equipment to have a steep rise time (less than 1ns) ) UWB electromagnetic pulse protection. Background technique [0002] Ultra-broadband electromagnetic pulse refers to a strong electromagnetic pulse with a rising edge time less than 1ns. Due to its extremely fast rising edge time, its spectral energy may be distributed in the range from 10MHz to several GHz, or even exceed 10GHz. Covering the working frequency band of most sensitive equipment at present, the ultra-wideband electromagnetic pulse can generate strong coupling with the antenna of sensitive equipment and enter the RF front-end and cause damage to the equipment. In addition, due to the high-f...

Claims

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Application Information

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IPC IPC(8): H02H9/00
Inventor 邓峰吴晓光易学勤郑生全方重华刘其凤
Owner CHINA SHIP DEV & DESIGN CENT
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