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1-Watt Ka-Band coplanar high power MMIC amplifiers using 0.15 µm GaAs PHEMTs

Koplanarer 1-Watt Ka-Band Leistungsverstärker mit 0,15 µm GaAs PHEMTs
: Bessemoulin, A.; Massler, H.; Hülsmann, A.; Schlechtweg, M.


IEEE Electron Devices Society:
22nd GaAs IC Symposium 2000. Technical digest : IEEE Gallium Arsenide Integrated Circuit Symposium. Seattle, Washington, November 5 - 8, 2000
Piscataway, NJ: IEEE, 2000
ISBN: 0-7803-5968-2
ISBN: 0-7803-5969-0
ISBN: 0-7803-5970-4
GaAs IC Symposium <22, 2000, Seattle/Wash.>
Fraunhofer IAF ()
coplanar MMIC; koplanare MMIC; power amplifier; Leistungsverstärker; millimeter wave; Millimeterwelle; LMDS

Two compact coplanar MMIC amplifiers having high output power at Ka-band are presented. Based on our 0.15-æm GaAs PHEMT process on 4 wafers, a two-stage MMIC driver amplifier has demonstrated at 35 GHz, a linear gain of 11 dB, an output power at 1 dB gain compression P(-1dB) of 350 mW, and a saturated output power P(-1dB) greater than 500 mW. At the same frequency, the coplanar high power amplifier achieved a linear gain of 9.5 dB, with P(- 1dB)=725 mW and more than 1 Watt of saturated output power. To our knowledge, this is the highest output power ever reported at Ka-band for any coplanar MMICs.