The design of a TE021 mode high power Ka-band gyroklystron

Author

Wang, Jianxun ; Yong Luo ; Xu, Yong

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

427

Lastpage

428

Abstract

The design study of a 34 GHz, 708 kW gyroklystron amplifier is presented. To enhance the power, the device has four cavities and operates in the TE₀₂ mode. Stagger tuning was employed to broadband the device. The nonlinear theory is used to calculate the optimized magnetic field. The sizes of the cavities were optimized to minimize the TE₀₁₁ mode and to suppress parasitic oscillations. The design yields a 34 GHz, 708 kW peak power, 47 dB saturated gain, 50.6% electron efficiency, and a -3 dB bandwidth of over 510 MHz (1.5%) with a 70 kV, 20 A electron beam by PIC simulation.

Keywords

gyrotrons; klystrons; magnetic fields; millimetre wave amplifiers; millimetre wave tubes; Ka-band gyroklystron; TE021 mode gyroklystron; current 20 A; efficiency 56 percent; electron efficiency; frequency 34 GHz; gain 47 dB; gyroklystron amplifier; high power gyroklystron; magnetic field; millimeter-wave gyroklystron; nonlinear theory; parasitic oscillations suppression; power 708 kW; stagger tuning; voltage 70 kV; Bandwidth; Circuit simulation; Cyclotrons; Electron beams; Gain; Klystrons; Magnetic fields; Magnetic resonance imaging; Nonlinear equations; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on

Conference_Location

Cardiff

Print_ISBN

978-1-4244-1438-3

Type

conf

DOI

10.1109/ICIMW.2007.4516564

Filename

4516564