Title :
Experimental study of a Ka-band gyrotron backward-wave oscillator
Author :
Park, Y. ; Kyser, Russell H. ; Armstrong, Carter M. ; Parker, Robert K. ; Granatstein, S.L.
Author_Institution :
Omega-P Inc., New Haven, CT, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
A gyrotron backward-wave oscillator (gyro-BWO) has been operated and magnetically tuned over the frequency range 27-32 GHz. Tuning by varying the electron beam voltage was effective over a smaller frequency range (Δf~1 GHz). Output power was as large as 7 kW, corresponding to a device efficiency of 19%. This large efficiency value was unexpected, and related analysis indicates it may be associated with the nonuniform magnetic field profile in the interaction region
Keywords :
backward wave tubes; gyrotrons; microwave oscillators; tuning; 19 percent; 27 to 32 GHz; 7 kW; Ka-band gyrotron backward-wave oscillator; electron beam voltage; nonuniform magnetic field profile; Cutoff frequency; Cyclotrons; Electromagnetic scattering; Electromagnetic waveguides; Electron beams; Gyrotrons; Laboratories; Oscillators; Resonance; Tunable circuits and devices;
Journal_Title :
Plasma Science, IEEE Transactions on
