200 GHz pulsed GaAs-IMPATT diodes

Abstract
GaAs double-drift Read IMPATT diodes for pulsed operation are designed for very high current densities (175 kA/cm2) at frequencies up to 200 GHz. The active devices are developed by using Monte-Carlo simulations in addition to a large-signal drift-diffusion model. RF output powers of 1 W at 176.5 GHz and 0.3 W at 198 GHz are realised.