Slow wave structure used for X-waveband space travelling wave tube

A technology of slow wave structure and traveling wave tube, applied in the field of slow wave structure, can solve the problems of self-excited oscillation and low electronic efficiency of the traveling wave tube, and achieve the effect of improving the total efficiency
CN101728183AInactive Publication Date: 2010-06-09HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
Publication Date
2010-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a slow wave structure used for an X-waveband space travelling wave tube. A tube shell adopts a Monel tube shell with the inner diameter of 1.9 millimeters, a holding rod is made of a wedge-shaped BeO99 material, the slow wave structure adopts a high-pure vacuum smelted molybdenum helix of 0.13mm*0.26mm, the helix at the output section of the slow wave structure has a plurality of sections with different thread pitches, and a two-section carbon film attenuator is selected for inhibiting self-oscillation. The slow wave system has the advantages of large coupling impedance, strong heat dissipation capability, high interactive efficiency and the like, and is suitable for the space travelling wave tube.
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Description

technical field

[0001] The invention belongs to the field of microwave electric vacuum devices, in particular to a slow wave structure used for X-band space traveling wave tubes. Background technique

[0002] The space traveling wave tube is the key component of the communication, navigation, data transmission and other payload systems of aerospace equipment, as well as the spaceborne transponder and the synthetic aperture radar (SAR) transmitter, and requires high efficiency. In the traveling wave tube, the high-frequency signal is transmitted axially along the slow wave line, and is amplified by the kinetic energy of the electron beam during the traveling process. Therefore, the interaction efficiency of the high-frequency signal and the electron beam is a key factor affecting the overall efficiency of the TWT.

[0003] The design of high-efficiency slow-wave system is an important link in the development of space traveling wave tubes. Since the electron beam and the hig...

Claims

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