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Coplanar 94 GHz metamorphic HEMT low noise amplifiers

Koplanare rauscharme metamorphe HEMT Verstärker bei 94 GHz
 
: Kärkkäinen, M.; Varonen, M.; Kantanen, M.; Karttaavi, R.; Weber, R.; Leuther, A.; Seelmann-Eggebert, M.; Nähri, T.; Halonen, K.

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IEEE Electron Devices Society:
IEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2006. CD-ROM : November 12 - 15, 2006, San Antonio, Texas, USA
Piscataway, NJ: IEEE, 2006
ISBN: 1-4244-0127-5
pp.29-34
Compound Semiconductor Integrated Circuit Symposium (CSICS) <28, 2006, San Antonio/Tex.>
English
Conference Paper
Fraunhofer IAF ()
rauscharmer Verstärker; low-noise amplifier (LNA); MMIC

Abstract
We report four low noise amplifiers for a 94 GHz cloud profiling radar. The LNAs are designed using coplanar waveguides and the designed amplifiers were manufactured with a 100-mn metamorphic high electron mobility transistor technology. The chip sizes are 2.00 x 1.00 mm2 and 2.25 x 1.00 mm2. The gate width of the transistor is 4x15 µm. The scattering parameters and the noise figures of the amplifiers were measured at W-band and the results are presented. The measured gain at 94 GHz was 17-23 dB and the measured noise figure 3.0-3.3 dB using a 0.8 V drain-to-source voltage and a drain current of 8-16 mA per stage.

: http://publica.fraunhofer.de/documents/N-50723.html