Design of a Ku-band 110-kW TE11 mode gyrotron traveling wave tube amplifier

Author

Geng, Zhi-Hui ; Liu, Pu-Kun ; Su, Yi-Nong ; Xue, Qian-zhong ; Yuan, Guang-Jiang ; Du, Chao-Hai ; Xu, Shou-Xi ; Gu, Wei ; Jin, Feng

Author_Institution

Inst. of Electron., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

22-24 April 2008

Firstpage

247

Lastpage

247

Abstract

In this paper, the design of a Ku-band 110-kW gyrotron traveling wave tube (gyro-TWT) amplifier with the operating mode TE₁₁ is presented. The optimum interaction structure circuit of the gyro-TWT with distributed wall losses is derived from the self-consistent nonlinear code on the basis of the dispersion relationship and the linear theory. The effects of the parameters such as input power, driver frequency, pitch ratio and so on upon the performance of the gyro-TWT is discussed. The simulation results show that the gain and the bandwidth of the designed Ku-band gyro-TWT is about 37.7 dB and 1.2 GHz with 3 dB bandwidth respectively at the input power 19.0 W. The peak output power and the corresponding electron efficiency is about 110.7 kW and 23.1% respectively with the voltage 80.0 kV and the current 6.0 A at the pitch ratio 0.8.

Keywords

gyrotrons; microwave amplifiers; microwave tubes; travelling wave amplifiers; travelling wave tubes; Ku-band amplifier; TE11 mode; current 6.0 A; frequency 1.2 GHz; gyrotron traveling wave tube amplifier; optimum interaction structure circuit; power 110 kW; power 110.7 kW; power 19 W; voltage 80.0 kV; Bandwidth; Broadband amplifiers; Chaos; Driver circuits; Electron tubes; Frequency; Gyrotrons; Power amplifiers; Power generation; Tellurium; Gyro-TWT; Ku-band; Self-consistent;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-1715-5

Type

conf

DOI

10.1109/IVELEC.2008.4556492

Filename

4556492