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Distributed Amplifier MMIC with 21 dB Gain and 90 GHz Bandwidth Using InP-Based DHBTs

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4 Author(s)
K. Schneider ; Fraunhofer Inst. of Appl. Solid-State Phys. (1AF), Freiburg ; R. Driad ; R. E. Makon ; G. Weimann

This paper reports a state-of-the-art distributed amplifier intended for use in 100 Gbit/s optical communication systems (Ethernet). Using an InP DHBT technology, exhibiting cut-off frequency values of more than 275 GHz for both fr and fmax, the amplifier achieved a gain of 21 dB and a 90 GHz 3-dB bandwidth, resulting in a gain-bandwidth product (GBW) of 1 THz. To our best knowledge, this represents the highest gain bandwidth product achieved for single-stage amplifiers in any technology reported to date.

Published in:

2007 IEEE Compound Semiconductor Integrated Circuits Symposium

Date of Conference:

14-17 Oct. 2007