1.Key Laboratory of Microwave Remote Sensing， National Space Science Center， Chinese Academy of Sciences， Beijing 100190， China;2.University of Chinese Academy of Sciences，Beijing 100049， China;3.Nanjing Electronic Devices Institute， Nanjing 210016， China
Supported by the Youth Innovation Promotion Association CAS （E1213A041S）， Pandeng Program of National Space Science Center， CAS （E0PD40013S）
Based on the hybrid integration method， a 335 GHz unbalanced frequency tripler is designed with a symmetrical tapered gradient line matching structure. Under the condition of ensuring single-mode transmission， the matching structure can not only fix the diode position， but also increase the matching effect， and thus solve the problem of narrow 3dB bandwidth for high-frequency band multiplier. The measured results show that the output power of the frequency tripler is all greater than 5 mW in the frequency range of 330-356 GHz. The maximum output power even reaches 11.2 mW at a driving power of 220 mW. The solid-state terahertz local oscillator， as the core device， can drive the 670 GHz sub-harmonic mixer in the superheterodyne receiver.
LI Yu-Hang, ZHANG De-Hai, MENG Jin, QI Lu-Wei.335 GHz unbalanced Schottky diode frequency tripler[J]. Journal of Infrared and Millimeter Waves,2023,42(2):229~233Copy