Detector of Radar peak value field strength

A test device, peak technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of measuring radar antennas, etc., and achieve the effect of narrow pulse width and high peak value

Active Publication Date: 2006-03-22
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, for a long time there was no suitable instrument capable of measuring the near field of the radar antenna

Method used

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  • Detector of Radar peak value field strength
  • Detector of Radar peak value field strength
  • Detector of Radar peak value field strength

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Embodiment Construction

[0013] The embodiment of the present invention will be further described below in conjunction with the accompanying drawings, which consists of a microwave field strength probe, a microwave field strength meter host and a computer. The microwave field strength probe includes a micro-antenna and a fully shielded probe box, the micro-antenna is a monopole micro-antenna without directionality, and the measuring range of the test instrument can be changed by adjusting its length; the fully-shielded probe box is provided with a high-frequency Attenuator, microwave detector and electro-optical conversion circuit, the high-frequency attenuator is a detachable structure, when the radar radiation power is not very high, the high-frequency attenuator can be removed; the working frequency of the microwave detector is 100MHz-18GHz, and the maximum input power 100mW. The electro-optical conversion circuit includes an impedance conversion circuit composed of field effect transistor Q1, high...

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Abstract

The radar peak field strength testing device may be used in measuring the near field peak strength of radar antenna in the frequency range 0.1-18 GHz. The testing device includes microwave field strength probe, microwave field strength instrument and computer. The probe includes micro antenna, shielded probe box, microwave detector and electrooptical converting circuit inside the box. The microwave field strength instrument consists of photoelectronic converting circuit, signal processing circuit and virtual oscillograph connected together. The microwave field strength instrument is connected to the probe with fiber and has output connected to the computer. The present invention can measure the peak field strength and average field strength of near radar field and the waveform of radar pulse. Using fiber as transmission medium makes the microwave field strength instrument far from the measured radar, raising the antijamming capacity and avoiding damage of electromagnetic radiation to the tester.

Description

technical field [0001] The invention relates to a microwave peak field strength testing device for radar radiation wave detection, which belongs to the field of electromagnetic compatibility testing and can be used for the peak field strength measurement of radar antenna near field within the frequency range of 0.1GHz to 18GHz. Background technique [0002] Radar has been widely used as a detection device. The intensity of the electromagnetic pulse radiated by the radar antenna changes greatly in time, showing the characteristics of periodic and instantaneous release. High peak characteristics. [0003] At present, most of the detection methods of electromagnetic field strength test instruments at home and abroad are quasi-peak detection or average detection, which can only be applied to continuous wave testing and cannot be used for high-power pulse field strength testing. If a general-purpose field strength test instrument is used for testing, two situations often occur:...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R29/08G01R29/10
Inventor 王海婴徐晓明刘义郑生全温定娥
Owner CHINA SHIP DEV & DESIGN CENT
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