@inproceedings{f57e02ddad36454dbdb7e07d33bb94ea,
title = "A 140GHz power amplifier with 20.5dBm output power and 20.8\% PAE in 250-nm InP HBT technology",
abstract = "We report a high-efficiency D-band power amplifier in 250nm InP HBT technology. The design has three common-base stages and a low-loss 4:1 transmission-line output power combiner. The amplifier has 20.5 dBm peak saturated output power with 20.8\% PAE and 15dB associated large-signal gain at 140GHz. At 1dB gain compression, the output power is 17dBm with 9.7\% PAE. The amplifier's peak small-signal gain is 20.3dB at 140GHz, and the small-signal 3-dB bandwidth is 120-163GHz. Over a 125-150GHz bandwidth, the saturated output power is within 2dB of its 140GHz maximum, with an associated PAE greater than 14.3\%. The amplifier consumes 0.52W DC power and occupies 0.69mm2 area. To the authors' knowledge, this result improves the state-of-the-art peak PAE at 140GHz by 1.6:1 for amplifiers of comparable saturated output power.",
keywords = "D-band, High efficiency, InP, Millimeter wave, Power amplifiers, Transmission-line combiner",
author = "Ahmed, \{Ahmed S.H.\} and Munkyo Seo and Farid, \{Ali A.\} and Miguel Urteaga and Buckwalter, \{James F.\} and Rodwell, \{Mark J.W.\}",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 ; Conference date: 04-08-2020 Through 06-08-2020",
year = "2020",
month = aug,
doi = "10.1109/IMS30576.2020.9224012",
language = "English",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "492--495",
booktitle = "IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium",
}