“Traveling-wave tube mechanics simulator suite” a CAD/CAE integrated rapid redesign system of vibration analysis for traveling-wave tubes

Millimeter / Submillimeter wave traveling wave tubes have the merits of high output power, frequency bandwidth, compact, light weight, etc. Millimeter / Submillimeter wave traveling wave tube is an ideal millimeter / submillimeter radiation source, can be used in fields of radar, electronic warfare, communication, etc. The paper introduced and summarized the research status of foreign Millimeter / submillimeter TWT wave tube, analyzed and discussed its trend.

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Vibration analysis of traveling wave tube in working conditions

2015 IEEE International Vacuum Electronics Conference (IVEC) ◽

10.1109/ivec.2015.7223969 ◽

2015 ◽

Author(s):

Huarong Qiu ◽

Fangfang Song ◽

Haijun Mo

Keyword(s):

Working Conditions ◽

Traveling Wave ◽

Vibration Analysis ◽

Traveling Wave Tube ◽

Wave Tube

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Second Harmonic Suppression in S-Band Traveling Wave Tube Tapers

Frequenz ◽

10.1515/freq-2014-0125 ◽

2014 ◽

Vol 69 (1-2) ◽

pp. 11-20

Author(s):

Elke Gehrmann ◽

Philip Birtel ◽

Wolfgang Dürr ◽

Frédéric André ◽

Arne F. Jacob

Keyword(s):

Traveling Wave ◽

Second Harmonic ◽

Harmonic Suppression ◽

Traveling Wave Tube ◽

Wave Tube ◽

Filter Performance ◽

Signal Suppression ◽

Measurement Results ◽

Traveling Wave Tubes ◽

Helix Parameters

Abstract Traveling wave tubes (TWTs) operating at S-band are to be improved by suppressing the second harmonic frequency. Among the different possibilities, two techniques, namely harmonic injection and a filter helix for frequency selective signal suppression, are studied in more detail and applied to S-band tubes in both simulation and measurement. In addition, their suitability to improve tube performance by reducing the second harmonic is discussed. Moreover, filter helix implementation in TWTs with an arbitrary pitch profile along the interaction area is considered. In this context, the dependence of the pitch discontinuity reflection coefficient on several filter helix parameters is investigated. The influence of those parameters on the filter performance is shown by filter helix optimization. Measurement results of the optimized filter helix TWT are presented.

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Application of Multi-Beam Technique in Microwave Tubes

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.155-156.784 ◽

2012 ◽

Vol 155-156 ◽

pp. 784-788

Author(s):

Ze Lun Li ◽

Zhi Cheng Huang ◽

You Jun Huang

Keyword(s):

Traveling Wave ◽

Wave Structure ◽

Slow Wave Structure ◽

Dispersion Characteristics ◽

Traveling Wave Tube ◽

Wave Tube ◽

Coupling Impedance ◽

Impedance Characteristics ◽

Traveling Wave Tubes ◽

Beam Technique

The applications of multi-beam technique in microwave tubes including klystrons and traveling wave tubes have been analyzed. A type of 5-beam traveling wave tube slow-wave structure was designed, and dispersion characteristics and coupling impedance characteristics were simulated. According to the simulated results, it can be concluded that dispersion of multi-beam traveling wave tube is satisfactory and the coupling impedance is high, and multi-beam technique can be widely used in microwave tubes because it can improve the plus and output power of microwave tubes.

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