High power CW 264 GHz tunable Extended Interaction Oscillator

Abstract

A novel model of the compact high power 264 GHz CW Extended Interaction Oscillator has been developed by CPI Canada. By combination of mechanical tuning and electronic switching between two operating modes, this EIO provides over 1 W of power in the range of 258 to 270 GHz. Liquid cooling is used to stabilize RF circuit temperature and prevent frequency detuning. Further development is ongoing to support THz operation with enhanced output power, which is currently limited by vacuum window capability.