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High-power millimeter wave and terahertz wave signal frequency multiplier device

A signal frequency multiplication and millimeter wave technology, applied to the circuit components of time-of-flight electron tubes, etc., can solve the problems of high cost of signal source, fluctuation of output signal frequency, and large relationship between electron beam voltage, so as to eliminate reflection and reduce cost , cheap effect

Inactive Publication Date: 2015-09-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] However, the cost of existing high-frequency millimeter wave and high-frequency terahertz wave signal sources is high, and the frequency tuning of the output signal is closely related to the voltage of the electron beam, and the fluctuation of the output signal frequency is easily caused by the fluctuation of the electron beam.

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  • High-power millimeter wave and terahertz wave signal frequency multiplier device

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] The present invention is mainly composed of two different slow wave structures, one works in the low frequency band of millimeter wave or terahertz wave, and the other works in the high frequency band of millimeter wave or terahertz wave. The slow wave structure can be a spiral, a coupled cavity, The two sections are connected by a section of a drift tube 6, which is a slender metal pipe, which can only pass electron beams but not electromagnetic waves. It can be seen as consisting of the following parts, from left to right: Electron gun 1 mainly produces electron beams, preferably the design of the electron gun adopts Pierce; low frequency signal interface 2 mainly inputs low frequency signal sources; low frequency slow waves Line structure 3, in the present invention, the electron beam generated by the electron gun interacts with low-frequency signals...

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Abstract

The invention discloses a high-power millimeter-wave and terahertz wave signal frequency multiplier device, which comprises a low-frequency-band slow-wave structure, a high-frequency-band slow-wave structure and a drift tube, wherein the drift tube is connected between the low-frequency-band slow-wave structure and the high-frequency-band slow-wave structure. A low-frequency-band millimeter wave or terahertz wave and an electron beam are interacted in the low-frequency-band slow-wave structure to generate velocity modulation, the electron beam generates electron bunching and density modulation in a drift tube area, and the bunched electron beams carry signals to excite high-frequency electromagnetic waves in the high-frequency-band slow-wave structure and the high-frequency electromagnetic waves are amplified. The device provided by the invention can obtain stable high-frequency-band millimeter wave and high-frequency terahertz wave signals, and simultaneously has the characteristic of low cost.

Description

Technical field [0001] The invention belongs to the technical field of microwave vacuum pipe fittings, and specifically relates to a high-power millimeter wave and terahertz wave signal frequency multiplication device. Background technique [0002] Terahertz or millimeter wave frequency band (300GHz~3000GHz) electromagnetic waves have very broad application prospects in communications, aerospace, security, medical imaging, biochemistry, and manufacturing industries. How to obtain a stable, reliable, high-efficiency, high-energy, and relatively low-cost terahertz radiation source has always been one of the hot topics in the terahertz field. Due to the current relative lack of terahertz radiation sources, electro-vacuum devices have regained unprecedented attention and development. As one of the most important devices in the field of microwave electric vacuum, the traveling wave tube has been playing an important role in radar communication and electronic warfare, and is constantl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/24
Inventor 巩华荣王斌唐涛宫玉彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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