Impedance Matching in High-Power Resonant-Tunneling-Diode Terahertz Oscillators Integrated with Rectangular-Cavity Resonator
Feifan Han, Kazunori Kobayashi, Safumi Suzuki, Hiroki Tanaka, Hidenari Fujikata, Masahiro Asada
Abstract
This paper theoretically presents that a terahertz (THz) oscillator using a resonant tunneling diode (RTD) and a rectangular cavity, which has previously been proposed, can radiate high output power by the impedance matching between RTD and load through metal-insulator-metal (MIM) capacitors. Based on an established equivalent-circuit model, an equation for output power has been deduced. By changing MIM capacitors, a matching point can be derived for various sizes of rectangular-cavity resonator. Simulation results show that high output power is possible by long cavity. For example, a high output power of 5 mW is expected at 1 THz.
Topics & Concepts
ResonatorTerahertz radiationCapacitorImpedance matchingResonant-tunneling diodeDiodeElectrical impedanceOptoelectronicsQuantum tunnellingPhysicsPower (physics)Materials scienceElectrical engineeringOpticsEngineeringVoltageQuantum wellLaserQuantum mechanicsTerahertz technology and applicationsSuperconducting and THz Device TechnologySemiconductor Quantum Structures and Devices