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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, can solve the problems of large electron beam voltage relationship, high signal source cost, and output signal frequency fluctuations, achieving low cost and eliminating reflections , cheap effect

Inactive Publication Date: 2013-04-17
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 accompanying drawings and specific embodiments.

[0023] The present invention mainly consists of two different slow wave structures, one of which 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 helix, a coupling cavity, The two sections are connected by a section of drift tube 6. The drift tube 6 is a slender metal pipe that can only pass electron beams but not electromagnetic waves. It can be regarded as composed of the following parts, from left to right: Electron gun 1 mainly generates 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 wave Line structure 3, in the present invention, the electron beam produced by the electron gun intera...

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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 in particular relates to a high-power millimeter wave and terahertz wave signal frequency multiplication device. Background technique [0002] Electromagnetic waves in the terahertz or millimeter wave band (300GHz to 3000GHz) have very broad application prospects in industries such as communications, aerospace, security, medical imaging, biochemistry, and manufacturing. How to obtain a stable, reliable, high-efficiency, high-energy, and relatively inexpensive terahertz radiation source has always been one of the hot topics in the terahertz field. Due to the relative scarcity of terahertz radiation sources, electric vacuum devices have received unprecedented attention and development. As one of the most important devices in the field of microwave and electric vacuum, the traveling wave tube has always played an important role in radar communication and electronic warfar...

Claims

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Application Information

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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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