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A miniaturized high-power microwave protection device

A high-power microwave and protective device technology, applied in emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve the problem of large volume, weak system resistance to strong electromagnetic damage, RF front-end strong electromagnetic protection measures and other issues, to achieve the effect of fast response, damage protection, and low insertion loss

Active Publication Date: 2021-02-09
CHINA ELECTRONICS TECH CYBER SECURITY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the high-power microwave protection device for the RF front-end of the communication system is relatively large, especially in systems with frequencies above the C-band and X-band, it is almost impossible to implement strong electromagnetic protection measures for the RF front-end, resulting in the system’s resistance to strong electromagnetic damage. very weak problem

Method used

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  • A miniaturized high-power microwave protection device
  • A miniaturized high-power microwave protection device
  • A miniaturized high-power microwave protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a miniaturized high-power microwave protection device, including an input interface 3, an output interface 13 and a high-power microwave protection circuit, the input interface 3 is connected to the interface 2 of the antenna 1, and the output interface 13 is connected to the radio frequency of the receiver 15. The front end 14 is connected, and the high-power microwave protection circuit is connected to the input interface 3 and the output interface 13 through a microstrip line.

[0024] Such as figure 1 As shown, the high power microwave protection circuit includes a gas discharge tube 5, a first transient voltage suppression diode 7, a second transient voltage suppression diode 11, a first inductor 4, a second inductor 8, a third inductor 12, and a first capacitor 6 and the second capacitor 10, wherein: the first end of the first inductor 4 is connected in parallel with the microstrip line connected to the input interface 3, and the first end...

Embodiment 2

[0026] This embodiment is on the basis of embodiment 1:

[0027] Such as figure 2 As shown, a miniaturized high-power microwave protection device in this embodiment also includes a shielding case base 17, a cover plate 16, and a circuit board 18. The shielding case base 17 and the cover plate 16 cooperate with each other and are formed by screw fastening. In a complete metal shielding case, the circuit board 18 is arranged in the metal shielding case, and the high-power microwave protection circuit is assembled on the circuit board 18 .

[0028] Preferably, the input interface 3 and the output interface 13 are standard 50-ohm SMA connectors, which are fixed to the base 17 of the shielding case by screws.

[0029] Preferably, the material of the metal cover plate and the shielding shell is aluminum, and the surface is sandblasted.

Embodiment 3

[0031] This embodiment is on the basis of embodiment 2:

[0032] Such as image 3 As shown, four bosses 19 for grounding and fixing the circuit board are provided at the four corners inside the shielding case base 17, and the input and output terminals of the circuit board are respectively connected to the core wires of the SMA connector through microstrip lines.

[0033] Preferably, the four corners of the circuit board 18 are provided with metallized through holes for grounding and fixing, and cooperate with the base 17 of the shielding case.

[0034] Preferably, the circuit board 18 is a high-frequency ceramic dielectric substrate with a dielectric constant of 3.66.

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Abstract

The invention relates to the field of high-power microwave technology. The invention discloses a miniaturized high-power microwave protection device, which includes an input interface, an output interface and a high-power microwave protection circuit. The input interface is connected to the interface of the antenna, and the output interface is connected to the interface of the receiver. The RF front end is connected, and the high-power microwave protection circuit is connected to the input interface and the output interface through a microstrip line. A miniaturized high-power microwave protection device of the present invention can effectively protect high-power microwaves from damage to electronic equipment at frequencies above C-band and X-band, and can be applied to system high-power microwave protection in C-band and X-band.

Description

technical field [0001] The invention relates to the technical field of high-power microwaves, in particular to a miniaturized high-power microwave protection device. Background technique [0002] The electromagnetic killing effect of high power microwave weapons on electronic equipment, communication networks and weapon systems in conventional warfare is very obvious. With breakthroughs in key technologies such as battery technology, high-power microwave sources, and radiation antennas, the high-power microwave energy radiated by high-power microwave weapons can reach 1GW-10GW, and the pulse rise time can reach below 1ns, which is especially important for various electronic devices. It is the high-power microwave protection capability of the communication system that poses a severe test, and improving the high-power microwave protection capability of the communication system has become an urgent task. [0003] At present, the high-power microwave protection device for the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/00
CPCH02H9/00
Inventor 何小东马谢贺宇吕剑明程慧斌王哲
Owner CHINA ELECTRONICS TECH CYBER SECURITY CO LTD