System and method of testing high power microwave pulse signal field strength in closed capsule

A high-power microwave, pulsed technology, applied in the direction of electromagnetic field characteristics, etc.

Inactive Publication Date: 2019-04-16
GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is impossible to use the traditional electromagnetic shielding test method under these inherent characteristics, so there is an urgent need for a test method different from the traditional electromagnetic shielding effectiveness to test the shielding effectiveness of various shielding devices and facilities

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  • System and method of testing high power microwave pulse signal field strength in closed capsule

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Embodiment Construction

[0011] The present invention will be further described in detail through specific embodiments below, but these embodiments are only for illustration and do not limit the scope of the present invention.

[0012] The high-power microwave pulse space field strength testing system in a closed chamber of the present invention includes a high-gain directional antenna 1, a low-noise amplifier 3, a high-speed microwave detector 5, and an oscilloscope 7.

[0013] The high-gain directional antenna 1 is used as the receiving terminal of the weak signal in the closed warehouse, and then the interface of the high-gain directional antenna 1 is connected with the input port of the low-noise amplifier 3, and the low-noise amplifier 3 output ports are connected with the 5 input ports of the high-speed microwave detector, The output port of the high-speed microwave detector 5 is connected with the input port of the oscilloscope 6 .

[0014] Among them, after the high-gain directional antenna 1 ...

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Abstract

The invention provides a system and a method of testing high power microwave pulse signal field strength in a closed capsule. A high gain directional antenna 1 is used as a receiving terminal of a weak signal in the closed capsule, an interface of the high gain directional antenna 1 is connected with an input port of a low noise amplifier 3, an output port of the low noise amplifier 3 is connectedwith an input port of a high speed microwave detector 5, an output port of the high speed microwave detector 5 is connected with an input port of an oscillograph 6, the low noise amplifier 3 amplifies small signal power received by the high gain directional antenna 1 linearly to a working range of the next level of high speed microwave detector 5 so as to obtain a narrow pulse signal, the high speed microwave detector 5 converts power of the narrow pulse signal into a voltage signal and then tests the voltage signal by using an oscillograph 7. When the high power pulse signal detects shield performance of the closed capsule, low internal signal power of the closed capsule and narrow pulse cause test problems. The invention effectively solves the above problems.

Description

technical field [0001] The invention belongs to the technical field of pulse signal field strength testing, and in particular relates to a high-power microwave pulse signal field strength testing system and method in a closed chamber. Background technique [0002] At present, with the development of high-power microwave technology, people put forward higher and higher requirements for high-power microwave measurement technology, especially in the field of high-power microwave protection. After passing through the shielding effect of the closed chamber, the high-power microwave pulse signal is characterized by low peak power and narrow pulse. It is impossible to use the traditional electromagnetic shielding test method under these inherent characteristics, so there is an urgent need for a test method different from the traditional electromagnetic shielding effectiveness to test the shielding effectiveness of various shielding devices and facilities. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 高峯
Owner GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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