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High-efficiency Ku-band HBT amplifier with 1 W CW output power

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5 Author(s)
Bartusiak, P. ; Texas Instrum. Inc., Dallas, TX, USA ; Henderson, T. ; Kim, T. ; Khatibzadeh, A.
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A compact, high-voltage AlGaAs/GaAs HBT was developed for applications in the Ku band using carbon-doped base structures. A single unit-cell device, operating under common-emitter mode and 10 V collector bias, produced 1.0 W CW output power at 15 GHz with 5.0 dB gain and 42% power-added efficiency. The power density of the device was a record 5.6 W/mm of emitter length.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 23 )