PROJECT TITLE :

Proof-of-Principle Experiment on High-Power Gyrotron Traveling-Wave Tube With a Microwave System for Driving and Extracting Power Through One Window

ABSTRACT:

A previously proposed technique, which allows feeding and extraction of microwave radiation to and from gyrotron traveling wave tubes (gyro-TWTs) using a single highly outsized barrier window has been experimentally proven. A Ka-band gyro-TWT employing a helically corrugated waveguide bounded by a reflector at the cathode side and a polarizer at the collector facet and additionally having a polarization separator at the beginning of the output transmission line has made 6 kW CW power with 3-dB bandwidth of 2.1 GHz within the zero-drive-drive stable regime and about 9 kW power within the frequency locking regime.