A ribbon slow-wave system with logarithmic meandering plane angle

Abstract

The invention discloses a strip-shaped slow-wave system with logarithmic meandering plane angles, which solves the existing logarithmic meandering plane angles by using a logarithmically meandering plane angle strip line slow-wave structure and its supporting use of ridge waveguide input and output ends In the line slow wave structure, the impedance mismatch caused by the discontinuity between the input and output terminals and the meander line leads to the problem of poor transmission characteristics of the slow wave system; The method of adding a gradual impedance matching terminal between the linear slow wave structure and the input and output terminals realizes the adjustment of the input impedance of the slow wave structure, greatly reduces the discontinuity of the connection between the slow wave structure and the input and output terminals, and effectively reduces the electromagnetic wave The reflections when passing from the input to the slow-wave structure and from the slow-wave structure to the output improve the transmission characteristics of the slow-wave system.

Description

technical field [0001] The invention belongs to the technical field of microwave electric vacuum electronic devices, and more specifically relates to a ribbon slow wave system with logarithmic meandering plane angle. Background technique [0002] As the most widely used microwave power amplifier device, the traveling wave tube has the characteristics of wide frequency band, high power, high gain, high efficiency and long life, and has a very wide range of applications in both military and civilian fields. The performance of the traveling wave tube usually directly determines the overall performance of the complete machine equipment. [0003] At present, the commonly used types of traveling wave tubes are: helical traveling wave tube, coupled cavity traveling wave tube, folded waveguide traveling wave tube, etc. However, due to the size co-existence effect, the size of the slow wave structure will decrease with the increase of its operating frequency. Reduced, under the cond...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a logarithmic plane angle meandering stripline slow wave system, through the plane angle logarithmically meandering stripline slow wave structure and its supporting use of ridge waveguide input and output ends, to achieve Solve the problem of poor transmission characteristics of the slow wave system due to the impedance mismatch caused by the discontinuity between the input and output terminals and the meander line existing in the existing plane angle logarithmic meander line slow wave structure

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