Terahertz-wave Emitter based on Antenna-Integrated MUTC-PD

The uni-traveling-carrier photodiode (UTC-PD) is a promising candidate for generating terahertz (THz) waves by photomixing since it utilizes only electrons as the active carriers and responded at very high frequency with relatively high output power. UTC-PD integrated with antenna makes THz generator compact and reduces the cost. In this paper, we fabricated an antenna integrated modified uni-traveling-carrier photodiode (MUTC-PD) with maximum operating frequency of 206 GHz and three resonance peaks (56 GHz, 106 GHz and 156 GHz) were found.