Output device of TE1,1 mode gyro traveling wave tube

An output device and traveling wave tube technology, applied in the field of power source, can solve the problems of unfavorable direct application of output mode and long-distance transmission, high-power millimeter wave transmission system is difficult to achieve high efficiency, compactness, miniaturization, etc. Design difficulty, reduce processing and installation requirements, and improve output efficiency

Active Publication Date: 2017-05-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0004] In order to solve the TE 1,1 The output mode of the mode convoluted traveling wave tube is not conducive to direct application and long-distance transmission, and the corresponding high-power millimeter-wave transmission system is difficult to achieve high effic...

Method used

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  • Output device of TE1,1 mode gyro traveling wave tube
  • Output device of TE1,1 mode gyro traveling wave tube
  • Output device of TE1,1 mode gyro traveling wave tube

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Embodiment Construction

[0031] Below in conjunction with example the present invention is described in further detail.

[0032] see figure 1 , taking the lateral output device of the Ku-band cyclotron TWT as an example. The output device is made of copper, which is a built-in component, installed in the vacuum environment in the gyrotron as a whole, and consists of a circular-elliptical waveguide transition section, an elliptical waveguide section, an elliptical-circular waveguide transition section and a circular waveguide radiator section. These four parts are connected in sequence and the lumen transitions smoothly.

[0033] The circular-elliptical waveguide transition section is a waveguide with a smooth inner wall. The radius of the inner wall of the circular waveguide is 7.7mm, the radius of the elliptical waveguide is 7.7mm, the angular disturbance factor is 0.27mm, and the length of the transition section is 13.5mm. The circular-elliptical waveguide transition section is used as the feed in...

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Abstract

The invention discloses an output device of a TE1,1 mode gyro traveling wave tube, and belongs to the technical field of power sources in the high-power millimeter wave technology. The output device comprises a circular-elliptical waveguide transition section, an elliptical waveguide section, an elliptical-circular waveguide transition section and a circular waveguide radiator connected in sequence, wherein the inner walls of the four are in smooth transition and the waveguide center lines are coaxial. The output device can directly output Gaussian beams, does not need an external over-mode waveguide mode converter, is beneficial to realizing broadband, high-efficiency and high-power operation of the high-power millimeter wave gyro traveling wave tube, is also beneficial to compactness and miniaturization of a high-power millimeter wave application system, can effectively output linearly polarized Gaussian beams, and does not need an external mode converter, a circular polarizer and other devices any more.

Description

technical field [0001] The invention belongs to the technical field of power sources in the high-power millimeter wave technology, and in particular relates to a lateral output device of a convoluted traveling wave tube capable of directly outputting linearly polarized Gaussian beams. Background technique [0002] The gyrotron is a high-power broadband millimeter-wave amplifier with the characteristics of broadband, high power, high gain and high efficiency. It has a wide range of application markets in communications, radar, precision guidance and material processing. In the realization process of the cyclotron TWT, the suppression of parasitic resonance (including reflection caused by input and output and local structure, instability of the working mode in the cut-off frequency domain, return wave resonance, etc.) is the most critical link in the design process. TE 1,1 As the fundamental mode of the circular waveguide, the mode not only helps to reduce the mode competitio...

Claims

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Application Information

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IPC IPC(8): H01J23/36H01J25/34
CPCH01J23/36H01J25/34
Inventor 吴泽威李浩王建勋罗勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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