Flat-plate type Blumlein transmission line based wide-spectrum high-power microwave radiation system

Abstract

The invention discloses a flat-plate type Blumlein transmission line based wide-spectrum high-power microwave radiation system. The system comprises a pulse driving source, a microwave oscillator and an antenna. Nanosecond pulses are generated through the pulse driving source and modulated into specific-frequency oscillating pulses by the aid of the microwave oscillator to realize spatial generation of wide-spectrum high-power microwave radiation through the antenna. The microwave oscillator consists of a flat-plate type Blumlein transmission line and a gas spark switch, position adjustment of a middle pole plate of the flat-plate type Blumlein transmission line can be realized in an electromagnetic pulse transmission direction, the gas spark switch is mounted in a slide way between middle and lower pole plates, and the oscillating pulses in a certain frequency can be generated through relative position of the gas spark switch and the middle pole plate. By the flat-plate type Blumlein transmission line based wide-spectrum high-power microwave radiation system, a specific structure of the broadband high-power microwave radiation system capable of generating center frequency ranging from hundreds of MHz to several GHz can be constructed, online regulation of the center frequency is realized, and the technical problem of generation of small-size variable-frequency high-power microwaves is solved.

Description

technical field [0001] The invention relates to the technical field of wide-spectrum high-power microwaves, in particular to a structure of a wide-spectrum high-power microwave radiation system based on a flat-plate Blumlein transmission line. Background technique [0002] Ultra-broadband and narrow-spectrum RF pulses are two typical types of high-power microwave technology. Ultra-broadband RF pulses have a wide frequency range, but low power spectral density; narrow-spectrum RF pulses have a narrow frequency range, but high power spectral density; In order to combine the technical advantages of both, the wide-spectrum high-power microwave technology is proposed; as one of the most critical components in the wide-spectrum high-power microwave radiation system, the performance of the high-power microwave oscillator directly affects the radiation characteristics of the system, so , wide-spectrum microwave oscillator technology has become the research focus and difficulty in th...

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Problems solved by technology

[0006] At present, the wide-spectrum high-power microwave radiation system has problems such as large volume, complex structure, narrow microwave center frequency range, and frequency cannot be adjusted online. In view of this, the present invention provides a wide-spectrum high-power The microwave radiation system can generate power in the order of 100 MW to GW, and the center frequency is 100 MHz to GHz, and the center frequency of high-power microwave can be adjusted online

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