1983 …2020

Research output per year

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Personal profile

Research Interests

R&D of GaAs PA (Power Amplifier), LNA (low Noise Amplifier), various types of MMICs
Microwave and millimeter-wave communication systems
Spike-gate technology for power amplifier with zero-temperature-coefficient
Integration technology of ferroelectric materials with GaAs MMIC
Gate Injection Transistor (GIT), GIT bilateral switch, Natural Super Junction diode, and “Drive-by-Microwave” technologies

Education/Academic qualification

PhD, Osaka University

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Research Output

  • N++GaN Regrowth Technique Using Pico-Second Laser Ablation to Form Non-Alloy Ohmic Contacts

    Ferreyra, R. A., Suzuki, A., Kazumoto, T. & Ueda, D., 1 Aug 2017, In : IEEE Electron Device Letters. 38, 8, p. 1079-1081 3 p., 7964732.

    Research output: Contribution to journalArticle

    Open Access
  • 6 Scopus citations
  • 12 Scopus citations

    A 3-phase AC-AC matrix converter GaN chipset with drive-by-microwave technology

    Nagai, S., Yamada, Y., Negoro, N., Handa, H., Hiraiwa, M., Otsuka, N. & Ueda, D., 1 Jan 2015, In : IEEE Journal of the Electron Devices Society. 3, 1, p. 7-14 8 p., 2364307.

    Research output: Contribution to journalArticle

    Open Access
  • 15 Scopus citations

    Extremely low on-resistance enhancement-mode GaN-based HFET using Ge-doped regrowth technique

    Suzuki, A., Choe, S., Yamada, Y., Nagai, S., Hiraiwa, M., Otsuka, N. & Ueda, D., 20 Feb 2015, 2014 IEEE International Electron Devices Meeting, IEDM 2014. February ed. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-February. p. 11.1.1-11.1.4 7047029

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • 1 Scopus citations