Title :
A 600 GHz low-noise amplifier module
Author :
Tessmann, A. ; Leuther, A. ; Massler, Hermann ; Hurm, V. ; Kuri, M. ; Zink, M. ; Riessle, M. ; Stulz, H.P. ; Schlechtweg, Michael ; Ambacher, Oliver
Author_Institution :
Fraunhofer Inst. for Appl. Solid State Phys. (IAF), Freiburg, Germany
Abstract :
A compact WR-1.5 (500-750 GHz) low-noise amplifier (LNA) circuit has been developed, based on a grounded coplanar waveguide (GCPW) technology utilizing 20 nm metamorphic high electron mobility transistors (mHEMTs). The realized six-stage LNA TMIC achieved a maximum gain of 15.4 dB at 576 GHz and more than 10 dB in the frequency range from 555 to 619 GHz. For low-loss packaging of the circuit, a waveguide-to-microstrip transition has been fabricated on a 20 ¼m thick GaAs substrate, demonstrating an insertion loss of only 1 dB between 500 and 720 GHz. The realized LNA module achieved a small-signal gain of 14.1 dB at 600 GHz and a room temperature (T = 293 K) noise figure of 15 dB at the frequency of operation.
Keywords :
coplanar waveguides; high electron mobility transistors; integrated circuit packaging; low noise amplifiers; microstrip transitions; semiconductor device packaging; submillimetre wave amplifiers; submillimetre wave integrated circuits; GCPW technology; GaAs; LNA; compact WR-1.5 low-noise amplifier circuit; frequency 500 GHz to 750 GHz; gain 14.1 dB; gain 15.4 dB; grounded coplanar waveguide technology; loss 1 dB; low-loss circuit packaging; mHEMT; metamorphic high electron mobility transistor; noise figure 15 dB; six-stage LNA TMIC; size 20 mum; size 20 nm; temperature 293 K to 298 K; terahertz monolithic integrated circuit; waveguide-to-microstrip transition; Biomedical imaging; Frequency control; Nitrogen; Quality control; Semiconductor device measurement; mHEMTs; grounded coplanar waveguide (GCPW); low-noise amplifier (LNA); metamorphic high electron mobility transistor (mHEMT); packaging; terahertz monolithic integrated circuit (TMIC);
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848456
