Circular-arc microstrip curve plane slow wave device

A circular arc and microstrip technology, applied in the field of semicircular arc microstrip curved plane slow wave devices, can solve the problems of low coupling impedance and output power, difficulty in meeting strength requirements, poor heat dissipation, etc., and achieve improved coupling impedance and Effects of output power, improvement of strength and heat dissipation, and avoidance of reflection phenomenon
CN102324362BInactive Publication Date: 2013-12-11UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2013-12-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to a circular-arc microstrip curve plane slow wave device which is assorted with a travelling wave tube in a microwave vacuum electronic technology. The circular-arc microstrip curve plane slow wave device comprises a boron nitride substrate, a semicircular microstrip curve and a metal shell, wherein the semicircular microstrip curve is fixed on the substrate and has an input end and an output end. According to the invention, because the microstrip curve the connection part of which is a smooth semicircular-arc is adopted, and boron nitride which has low dielectric constant and higher compression strength, hardness and heat conductivity factor is used as the substrate, not only the coupling impedance and the output power are improved, but also the strength and the heat dissipation of the substrate as well as the finished product ratio and the service life in the production process of the slow wave device are effectively improved. Therefore, the microstrip curve plane slow wave device can work in a frequency band above millimeter waves stably and reliability at the same time of being miniaturized and has the characteristics of good heat dissipation and high coupling impedance and output power, high performance and reliability while cooperatively used with the travelling tube working in a frequency band above millimeter waves, as well as high finished product rate and long service life in the production process of the slow wave device, and the like.
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Description

technical field

[0001] The invention belongs to the field of microwave vacuum electronics technology and is matched with a slow-wave device for traveling wave tubes, in particular to a semi-circular arc-shaped microstrip curve plane slow-wave device. Background technique

[0002] Traveling wave tube is a vacuum electronic device that realizes microwave amplification by continuously modulating the speed of electron beam. In the traveling wave tube, the electron beam interacts effectively with the electromagnetic traveling wave traveling in the slow wave device. In the slow wave circuit with dozens of wavelengths, the electron beam continuously transfers the kinetic energy of the electrons to the electromagnetic traveling wave. , so that the electromagnetic traveling wave is amplified. Traveling wave tubes have the characteristics of high power, high efficiency, high gain, wide frequency band and long life.

[0003] The slow wave device is the main component for amplifying m...

Claims

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