A high efficiency 670 GHz x36 InP HEMT multiplier chain
- Resource Type
- Conference
- Authors
- Zamora, Alexis; Leong, Kevin M. K. H.; Mei, Gerry; Lange, Mike; Yoshida, Wayne; Nguyen, Khanh T.; Gorospe, Ben S.; Deal, William R.
- Source
- 2017 IEEE MTT-S International Microwave Symposium (IMS) Microwave Symposium (IMS), 2017 IEEE MTT-S International. :977-979 Jun, 2017
- Subject
- Fields, Waves and Electromagnetics
Power amplifiers
Power generation
HEMTs
Indium phosphide
III-V semiconductor materials
MMICs
Power demand
Multiplier
Source
Terahertz
THz
InP
HEMT
submillimeter wave
- Language
In this letter, the first 670 GHz multiplier chain with integrated buffer amplifiers is reported. The x36 multiplier chain uses a 25 nm InP HEMT MMIC technology with > 1.5 THz fMAX. The chain consists of five packaged MMICs in three split-block waveguide housings with each multiplier incorporating an integrated output buffer. We report an output power of 1.8 mW at 680 GHz when measured at room temperature, with a total DC power consumption of only 1.7 W. This is believed to be the highest DC efficiency reported for a complete multiplier chain at this frequency range.