Resonant tunneling diodes for feeding antenna-structures for terahertz source applications

Resonant tunneling diodes (RTDs) have negative differential resistance (NDR) that enables them to produce power at several terahertz (THz). In this paper, an AlAs/GaAs/AlAs RTD is optimized for maximum output power and large negative differential resistance to improve matching to the antenna. Simulations for the designed RTD are based on the quantum-mechanical global coherent model.