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Ultra- Broadband Common Collector-Cascode 4-cell Distributed Amplifier in 250nm InP HBT Technology with over 200 GHz Bandwidth

Giannakopoulos, S; Eriksson, K; Darwazeh, I; He, ZS; Zirath, H; (2017) Ultra- Broadband Common Collector-Cascode 4-cell Distributed Amplifier in 250nm InP HBT Technology with over 200 GHz Bandwidth. In: Proceedings of the 2017 12th European Microwave Integrated Circuits Conference (EuMIC). (pp. pp. 142-145). IEEE: Nuremberg, Germany. Green open access

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Abstract

An ultra broadband MMIC amplifier is designed using InP double-heterojunction bipolar transistors and its on-chip measurements are reported. The multi-cell distributed amplifier uses four gain cells where each consists of a common collector input stage followed by a cascode gain stage. The chip includes bias, decoupling and terminating circuits for the dc and RF interconnects; it measures 0.72 mm by 0.4 mm. It consumes 210 mW of power and can deliver up to 5.5 dBm of output power at 195 GHz. The amplifier achieves an average gain of 13.5 dB with an overall bandwidth over 200 GHz and a ± 2 dB gain ripple. The measurements indicate that this is the widest band dc-coupled amplifier reported to date and has the highest bandwidth reported among non-cascaded distributed amplifiers.

Type: Proceedings paper
Title: Ultra- Broadband Common Collector-Cascode 4-cell Distributed Amplifier in 250nm InP HBT Technology with over 200 GHz Bandwidth
Event: 12th European Microwave Integrated Circuits Conference (EuMIC) 2017
Location: Nuremberg, GERMANY
Dates: 08 October 2017 - 10 October 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.23919/EuMIC.2017.8230680
Publisher version: https://doi.org/10.23919/EuMIC.2017.8230680
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Gain, Bandwidth, Frequency measurement, Heterojunction bipolar transistors, Indium phosphide, III-V semiconductor materials, Transmission line measurements
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10060073
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