Design and experimental study of a broadband U-band TE01 gyrotron traveling wave tube

Author

Xu, Y. ; Luo, Y. ; Yan, R. ; Wang, J.X. ; Liu, G.

Author_Institution

Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2015

fDate

27-29 April 2015

Firstpage

1

Lastpage

2

Abstract

Design and experimental study of a wide-band U-band gyrotron travelling wave tube (gyro-TWT) amplifier are presented. The interaction circuit is constructed by periodic loaded dielectric, which provided required loss for stable operation. Potential oscillations are effectively suppressed. The U-band gyro-TWT is zerodriven stable at the operating points. A saturated peak power of 158 kW was measured at 48GHz by hot test, corresponding to a saturated gain of 47.4dB and an efficiency of 22.6%. Measured bandwidth over 100kW is in the range of 46.2-49.4GHz. Large-signal prediction shows excellent agreement with the hot test results.

Keywords

gyrotrons; travelling wave amplifiers; travelling wave tubes; broadband U-band TE01 gyrotron traveling wave tube; efficiency 22.6 percent; frequency 46.2 GHz to 49.4 GHz; frequency 48 GHz; gain 47.4 dB; hot test; periodic loaded dielectric; power 158 kW; saturated gain; saturated peak power; wide-band U-band gyrotron travelling wave tube amplifier; Bandwidth; Ceramics; Dielectrics; Gain; Oscillators; Power amplifiers; Power measurement; U-band; dielectric loaded ceramic; gyro-TWT;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Conference_Location

Beijing

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7223870

Filename

7223870