Researcher Database

（Last updated : 2025-10-11 20:03:44）　

NOSAKA HIDEYUKI

Department / Course College of Science and Engineering Department of Electrical and Electronic Engineering

Title / Position Professor

Click to view the Scopus page. The data was downloaded from Scopus API on Sep 01, 2025. via http://api.elsevier.com and http://www.scopus.com .

Other Affiliations
1.	Graduate School of Science and Engineering
2.	Research Organization of Science and Technology VLSI Center

Academic background
1.	2003/02 Degree Acquisition	│ Tokyo Institute of Technology Doctor of Engineering
2.	2005/04～2007/03	Master Course │ Management of Technology Major │ Graduate School of Innovation Management │ Tokyo Institute of Technology │ Completed Master of Technology Management
3.	1993/04～1995/03	Master Course │ Department of Physics │ Graduate School of Science and Technology │ Keio University │ Completed Master of Science
4.	1989/04～1993/03	│ Keio University │ Graduated Bachelor of Science

Business career
1.	2023/04	Professor │ │ RARA Associate Fellow, Ritsumeikan University
2.	2021/04 ～	Professor │ College of Science and Engineering, Department of Electrical and Electronic Engineering │ Ritsumeikan University
3.	2021/04 ～	Professor │ │
4.	2021/04 ～	Professor │ │
5.	1995/04 ～ 2021/03	│ │ NTT Corporation

Committee and society
1.	2023/01 ～ 2024/12	IEEE MTT-S Kansai Chapter Treasurer
2.	2022/01 ～ 2022/12	IEEE MTT-S Kansai Chapter Technical Committee

Subject of research
1.	Research on new analog circuit architecture towards the 6G Era

Research summary
Innovative analog circuit architecture in the 6G era Waves include electromagnetic waves such as radio waves and light, sound waves, and gravitational waves. There are millimeter waves and terahertz waves in the boundary area between radio waves and light, and their use in smartphones and IoT has been considered in recent years. In order to utilize this undeveloped frequency, a new technology "wave engineering" that flexibly controls waves is important. For example, controlling the phase to form a beam in the desired direction or switching to a better wavelength in the propagation environment. In our laboratory, we are researching innovative analog integrated circuits for freely controlling the frequency, phase, and amplitude of waves. Through this research, we aim to realize high-speed wireless communication that can be connected without interruption, and to realize sensing and imaging such as food analysis, lesion analysis, and space exploration. In the 6th generation mobile communication system (6G) era, the area of information communication extends not only on the ground but also in the sky, underwater, and space. We will enrich our lives with circuit technology.

Present specialized field
Communication and network engineering, Electron device and electronic equipment, Semiconductors, optical properties of condensed matter and atomic physics (Keyword：Analog Circuit, Mixed Signal, Integrated Circuit, Wireless Communication, Millimeter wave, Teraherz Wave, 6G)

Books
1.	2006/03	High-speed Optical Transceivers: Integrated Circuits Designs And Optical Devices Techniques

Papers
1.	2025/09/18	Quadrature Direct Digital Synthesizer Using Folding Circuits with Current Steering DACs │ 10th IEEE International RF and Microwave Conference (RFM2025) │
2.	2025/09/17	A ROM-Less DDS with a Double Integrator Using a Current Mirror │ 10th IEEE International RF and Microwave Conference (RFM2025) │
3.	2025/09/17	Vector Sum Phase Shifter Using Mixed-Signal Folding Circuits with Two's Complement Converter │ 10th IEEE International RF and Microwave Conference (RFM2025) │
4.	2025/08/27	Linearly Controllable Infinite Phase Shifter Using Current Output DACs with Tapped Load Resistors │ 2025 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT2025) │
5.	2024/11/18	Fast-Phase-Switching Vector-Sum Phase Shifter with Optimal Mapping of Current Switches │ 2024 Asia Pacific Microwave Conference (APMC2024) │
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Academic conference presentation
1.	2024/03/04	Development of Wideband Antennas
2.	2021/06/20	Ultra-wideband analog front-end ICs enabling over 100 Gb/s wireless transmission
3.	2021/02/22	Wide-band WDM Inline-amplified Transmission by Optical Parametric Amplifier using PPLN Waveguides
4.	2020/10	Ultra-wide-band analog front-end ICs for optical and wireless transmissions
5.	2020/01/31	An Accurate and Fast Permittivity Measurement System for Terahertz imaging
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Winning science prize
1.	2018/11	APMC 2018 Prize (High-Output-Power and Reverse-Isolation G-Band Power Amplifier Module Based on 80-nm InP HEMT Technology)

Grants-in-Aid for Scientific Research -KAKENHI-
1.	2022/06/30 ～ 2025/03/31	Frequency Synthesizer for Advanced Wireless Systems: Challenge of Frequency Synthesis by New Principle Analog Sine Function Circuit │ Challenging Research(Exploratory)

Acquisition patent
1.	2025/01/21	Circuit integrated antenna （United States Patent 12206188）
2.	2025/01/21	Distributed circuit （United States Patent 12206373）
3.	2024/12/24	Voltage setting circuit, semiconductor integrated circuit and voltage setting method （United States Patent 12176852）
4.	2024/12/03	Amplifier and driver circuit （United States Patent 12160205）
5.	2024/10/15	Sampling circuit （United States Patent 12119962）
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Home Page
Wave engineering laboratory

researchmap Researcher code
R000003323