Ultra-high field intensity, ultra-short pulse and narrow-band microwave radiation field measurement system and measurement method

Abstract

The invention discloses an ultra-high field intensity, ultra-short pulse and narrow-band microwave radiation field measurement system. The system is composed of a broadband double-ridge horn antenna,a microwave broadband attenuator, a high-speed microwave detector, and a high-speed digital oscilloscope, wherein the broadband double-ridge horn antenna and the microwave broadband attenuator are connected through a low-loss radio frequency coaxial cable. The invention further provides an ultra-high field intensity, ultra-short pulse and narrow-band microwave radiation field measurement method. The broadband double-ridge horn antenna is used as a front-end field receiving probe and has relatively wide applicable range; the low-loss radio frequency coaxial cable and the microwave broadband attenuator are used for transmitting and attenuating a high-power microwave pulse signal received by the front-end broadband double-ridge horn antenna, the transmission and attenuation are safe, and thedynamic range of the measurement can be improved, and the accuracy and the flexibility are provided. After performing wave detection on the microwave pulse signal by using the high-speed microwave detector, an amplitude value, rise time, the pulse width and like parameters of the signal can be measured through the oscilloscope.

Description

technical field [0001] The invention relates to an electromagnetic measurement system and method, in particular to an ultra-high field strength, ultra-short pulse, and narrow-band microwave radiation field measurement system and measurement method, belonging to the technical field of complex electromagnetic environment effect tests. Background technique [0002] With the development of high-power microwave weapon technology, electronic information equipment and systems are facing the threat of high-power microwave weapons. High-power microwave, with its ultra-high field strength and ultra-short pulse microwave electromagnetic radiation, couples strong high-power microwave electromagnetic pulses on the antennas, cables, holes and other paths of electronic information equipment and systems, making electronic information equipment and systems The performance of sensitive electronic components and modules is degraded and damaged, and the equipment and systems cannot work. The U...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for measuring ultra-high field strength, ultra-short pulse, and narrow-band microwave radiation field, which is used to solve the problem that the field strength amplitude reaches tens of kV / m, the pulse width is only tens of ns, and the carrier frequency reaches several GHz. Accurate measurement of the above narrowband high power microwave radiation field

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