Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Metamorphic HEMT amplifier circuits for use in a high resolution 210 GHz radar

Auf einer metamorphen HEMT-Technologie basierende Verstärkerschaltkreise für den Einsatz in einem hochauflösenden 210-GHz-Radar
 
: Tessmann, A.; Leuther, A.; Massler, H.; Kuri, M.; Riessle, M.; Zink, M.; Sommer, R.; Wahlen, A.; Essen, H.

:

Institute of Electrical and Electronics Engineers -IEEE-; European Desalination Society -EDS-:
29th IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC 2007 : 14th-17th Oct 2007, Hilton Portland & Executive Tower Portland , Oregon, USA
Piscataway, NJ: IEEE, 2007
ISBN: 1-4244-1022-3
ISBN: 978-1-4244-1023-1
pp.248-251
Compound Semiconductor Integrated Circuit Symposium (CSIC) <29, 2007, Portland/Or.>
English
Conference Paper
Fraunhofer IAF ()
Fraunhofer FHR
cascode; Kaskode; G-Band; grounded coplanar waveguide; komplanarer Wellenleiter mit Rückseitenmetallisierung; GCPW; high-power amplifier; Leistungsverstärker; HPA; low-noise amplifier (LNA); rauscharmer Verstärker; metamorphic high electron mobility transistor; metamorpher Transistor mit hoher Elektronenbeweglichkeit; MHEMT; millimeter-wave monolithic integrated circuit; monolithisch integrierte Millimeterwellenschaltung; MMIC; inverse synthetic aperture radar (ISAR); inverses synthetisches Apertur Radar (ISAR); W-Band

Abstract
In this paper, we present the development of a W-band power amplifier (PA) circuit and a G-band low-noise amplifier (LNA) MMIC for use in a high-resolution radar system operating at 210 GHz. The power amplifier circuit has been realized using a 0.1 µm InAlAs/InGaAs based depletion-type metamorphic high electron mobility transistor (MHEMT) technology in combination with grounded coplanar circuit topology and cascade transistors, thus leading to a small-signal gain of 12 dB and a saturated output power of 20.5 dBm at 105 GHz. The low-noise amplifier MMIC was fabricated using an advanced 0.05 µm MHEMT technology and achieved a small-signal gain of more than 16 dB over the frequency band from 180 to 220 GHz together with a state-of-the-art room temperature noise figure of only 4.8 dB. Both amplifier circuits were successfully packaged into millimeter-wave waveguide modules and used to realize a 210 GHz radar, which delivers an instantaneous bandwidth of 8 GHz and an outstanding spatial resolution of 1.8 cm.

: http://publica.fraunhofer.de/documents/N-66320.html