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Waveguide plasma limiter and design method thereof

A technology of plasma and design method, applied in the direction of plasma, electrical components, etc., can solve the problem of ineffective protection methods

Active Publication Date: 2015-03-25
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the face of the rapid development of microwave technology, hundreds of GW of high peak power, high repetition rate and fast rising edge are the development trend of HPM, and traditional protection methods are often difficult to work

Method used

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  • Waveguide plasma limiter and design method thereof
  • Waveguide plasma limiter and design method thereof
  • Waveguide plasma limiter and design method thereof

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The waveguide plasma limiter is a sealed cavity filled with easily ionized gas. The incident high-power microwave is used to ionize the gas to generate plasma with a frequency higher than the incident microwave frequency. The plasma reflects microwave energy to protect sensitive electrons. The role of the device.

[0021] The embodiment of the present invention provides a design method of waveguide plasma limiter, such as figure 1 As shown, the method ...

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Abstract

The embodiment of the invention provides a waveguide plasma limiter and a design method of the waveguide plasma limiter and relates to the field of electromagnetic pulse protection. The waveguide plasma limiter can effectively confront with a high-power microwave weapon. The design method includes the steps that the cut-off frequency f<c> and the sectional dimensions a and b of rectangular waveguides are determined according to the frequency f of normal transmission signals, wherein f<c> is equal to 0.9f, the formula in the specification is achieved, and b is equal to 0.3a to 0.5 a; the plasma frequency f smaller than the cut-off frequency f<c> and larger than the high-power microwave power f<HPM>, filling gas generated when t is shorter than t<r> and the gas pressure of the filling gas are determined; the thickness d (please see the formula in the specification) of the filling gas is obtained through calculation.

Description

technical field [0001] The invention relates to the field of electromagnetic pulse protection, in particular to a waveguide plasma limiter and a design method thereof. Background technique [0002] High-power microwave weapons (HPMW) can cause interference to electronic equipment through electrical effects, thermal effects, and biological effects, resulting in breakdown of the PN junction of semiconductor devices and even device burnout. Microwave weapons have wide beams, long distances, and are less affected by the climate. They do not need to accurately track and aim at targets, making it difficult for modern military electronic equipment to protect against HPMW. Although some protective measures have been proposed for the coupling approach and characteristics of HPM, most of these protective measures are based on the previous electromagnetic compatibility technology. Faced with the rapid development of microwave technology, hundreds of GW of high peak power, high repetit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/46
Inventor 张建国邱扬李欢丽许社教田锦张骏祥乔琪张聪高原李辉岳田
Owner XIDIAN UNIV
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