Latest experiments of W-band gyro-BWO using helically corrugated waveguides

He, W. and Donaldson, C. R. and Zhang, L. and McElhinney, P. and Phelps, A. D. R. and Ronald, K. and Cross, A. W. (2013) Latest experiments of W-band gyro-BWO using helically corrugated waveguides. In: 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE. ISBN 9781467347174

Full text not available in this repository.Request a copy from the Strathclyde author

Abstract

Latest experimental developments of W-band gyro-devices with helically corrugated waveguides and a cusp electron gun are presented. The cusp generated a 40 keV, 1.5 A axis-encircling electron beam. Helical corrugated waveguides have ideal dispersive properties which improve the frequency tuning range of a gyrotron backward wave oscillator (gyro-BWO) whilst maintaining the already good efficiency of operation. The output power of the gyro-BWO was measured to be 12 kW with a frequency tuning range of 88-103 GHz.