Coplanar 94 GHz Metamorphic HEMT Low Noise Amplifiers

Author

Kärkkäinen, Mikko ; Varonen, Mikko ; Halonen, Kari A I ; Weber, Rainer ; Leuther, Arnulf ; Seelmann-Eggebert, Matthias ; Kantanen, Mikko ; Karttaavi, Timo ; Narhi, Tapani

Author_Institution

Millimetre Wave Lab. of Finland, Helsinki Univ. of Technol., Espoo

fYear

2006

Firstpage

29

Lastpage

32

Abstract

We report four low noise amplifiers for a 94 GHz cloud profiling radar. The LNAs are designed using coplanar waveguides and they were manufactured with a 100-nm metamorphic high electron mobility transistor technology. The chip sizes are 2.00 times 1.00 mm² and 2.25 times 1.00 mm². The gate width of the transistor is 4times15 mum. 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

Keywords

HEMT integrated circuits; MMIC amplifiers; S-parameters; atmospheric measuring apparatus; coplanar waveguides; low noise amplifiers; meteorological radar; 0.8 V; 100 nm; 15 micron; 17 to 23 dB; 3 to 3.3 dB; 4 micron; 8 to 16 mA; 94 GHz; MMIC amplifiers; cloud profiling radar; coplanar metamorphic HEMT low noise amplifiers; coplanar waveguides; metamorphic high electron mobility transistor; noise figures; scattering parameters; Clouds; Coplanar waveguides; Current measurement; Gain measurement; Low-noise amplifiers; Manufacturing; Noise figure; Noise measurement; Radar; mHEMTs; Low-noise amplifiers; MMIC amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Compound Semiconductor Integrated Circuit Symposium, 2006. CSIC 2006. IEEE

Conference_Location

San Antonio, TX

Print_ISBN

1-4244-0126-7

Electronic_ISBN

1-4244-0127-5

Type

conf

DOI

10.1109/CSICS.2006.319911

Filename

4109970