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Waveform pulse width expansion method of transient electromagnetic pulse radiation array

An electromagnetic pulse and radiation array technology, which is applied in the field of electromagnetic field and microwave, can solve the problems of size, large volume, reduced antenna radiation efficiency, and increased difficulty of antenna design and engineering, and achieve flexible waveform pulse width expansion and radiation performance. Effect

Pending Publication Date: 2021-12-17
中国人民解放军63660部队
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Problems solved by technology

However, the increase of the transient pulse width will sharply reduce the radiation efficiency of the antenna, and the size and volume of the corresponding radiation antenna will be larger, making it difficult to form an array, and the difficulty of antenna design and engineering implementation will be greatly increased

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  • Waveform pulse width expansion method of transient electromagnetic pulse radiation array
  • Waveform pulse width expansion method of transient electromagnetic pulse radiation array
  • Waveform pulse width expansion method of transient electromagnetic pulse radiation array

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] A method for expanding the waveform pulse width of a transient electromagnetic pulse radiation array, which can be realized based on the transient electromagnetic pulse radiation array including an array antenna radiation unit and a delay control module. Among them, the array antenna radiating unit includes a pulse source for generating transient pulses and a radiating antenna. Multiple units together form a radiation array, and the radiation pulse is synthesized in space in time domain to generate a transient electromagnetic field; the delay control module can control the delay through the circuit. Time chip or optical fiber delay line and other devices, mainly by adjusting the delay of the trigger signal of the array antenna radiation unit, to realize the delay control of the radiation field of each array antenna radiation unit.

[002...

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Abstract

The invention relates to the technical field of electromagnetic fields and microwaves, in particular to a waveform pulse width expansion method of a transient electromagnetic pulse radiation array. The time domain superposition characteristic of transient electromagnetic pulses in the array antenna is utilized, the time delay of the array antenna radiation units is controlled, and under the condition that the antenna size and the array structure are not changed, the pulse width expansion of the waveform of the synthetic radiation field can be realized, so that the synthetic radiation field contains more low-frequency assemblys, and the radiation efficiency is improved. The limitation of the antenna on the aspect of physical hardware is avoided, and the waveform pulse width expansion of the transient electromagnetic pulse radiation array can be realized in a simple, convenient and flexible manner.

Description

technical field [0001] The invention relates to the field of electromagnetic field and microwave technology, in particular to a method for expanding the waveform pulse width of a transient electromagnetic pulse radiation array. Background technique [0002] Transient electromagnetic pulse is a time-domain electromagnetic wave with a rise time and pulse duration of ns or sub-ns magnitude and a frequency spectrum ranging from tens of MHz to several GHz. It is used in radar target detection and identification, electromagnetic damage and biomedicine. have received extensive attention and have broad application prospects. The array antenna is one of the main technical means for radiating transient electromagnetic pulses. Compared with the large-aperture pulse impact antenna, the beam radiated by the array antenna is more concentrated, and the array size and form can also be flexibly adjusted according to the actual application scenario. Therefore, in the transient It is widely u...

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Application Information

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IPC IPC(8): H04B7/06H04B17/10H04B17/391
CPCH04B7/0667H04B17/104H04B17/3912
Inventor 赵维燕有杰蒋廷勇王彬文
Owner 中国人民解放军63660部队
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