A W-BAND GYRO-BWO USING A HELICALLY CORRUGATED WAVEGUIDE
Presented in this paper is the design of a W-Band Gyro-BWO with a helically corrugated waveguide and a cusp electron gun. The interaction region has been constructed with good accuracy and microwave results measured using a vector network analyzer are given. The microwave dispersion agrees well with analytical and numerical theory. The transmission loss of this helically corrugated waveguide was measured to be ~1dB over the frequency range (84-104GHz). A cusp electron gun has been designed to generate a 1.5A, 40kV electron beam with an adjustable pitch angle (α) of up to 3. The beam was optimized through numerical simulation with an axial velocity spread, Δvz/Vz, of 7% and Δα/α, of 10.4% at α=1.65. From simulation of the beam-wave interaction the maximum output power from the Gyro-BWO was predicted to be 10kW (CW) at 17% efficiency, with a 3dB frequency tuning range of~84-104GHz.
C.R.Donaldson W.He A.D.R.Phelps F.Li A.W.Cross K.Ronald A.R.Young C.G.Whyte
SUPA,Department of Physics,University of Strathclyde,Glasgow,G4 0NG,Scotland,UK
国际会议
17th International Conference on High-Power Particle Beams(第17届高功率离子束国际会议)
西安
英文
527-528
2008-07-06(万方平台首次上网日期,不代表论文的发表时间)