CW Operation of a W-Band High-Gain Helical-Waveguide Gyrotron Traveling-Wave Tube
С. В. Самсонов, Г. Г. Денисов, I. G. Gachev, A. A. Bogdashov
Abstract
Experimental details are discussed and millimeter wave measurements presented of a W-band gyrotron traveling-wave tube (gyro-TWT) that uses a helically corrugated interaction waveguide operating at the second electron cyclotron harmonic. A method for increasing the gain by using an interaction circuit with two sections separated by a long sub-cutoff drift section has been experimentally verified. A 10-mW driving source was sufficient to enable an amplified signal output power of 3 kWs. The continuous-wave (CW) operation with a single-stage depressed collector and deposited beam power of about 20 kW is believed to be the first demonstration of its kind for a W-band gyro-TWT.
Topics & Concepts
GyrotronTraveling-wave tubeCyclotronExtremely high frequencyOpticsPhysicsW bandHarmonicWaveguidePower (physics)Cathode rayElectron gunTube (container)Beam (structure)Terahertz radiationSIGNAL (programming language)AmplifierElectronMaterials scienceOptoelectronicsAcousticsQuantum mechanicsCMOSComposite materialComputer scienceProgramming languageGyrotron and Vacuum Electronics ResearchMicrowave Engineering and WaveguidesParticle accelerators and beam dynamics