新着情報

ISSCC 2026で発表します！ Forum Presentation Kenichi Okada, “Exploration of 6G FR3 for Coverage, Capacity, and Sensing in Edge AI Era” Regular Session Daxu Zhang, et al., “A 9.7GHz Self-Linearized-VCO-Based FMCW Chirp Generator Achieving 1.56GHz/µs Slope and 0.57µs Duration with 0.094% rms Frequency Error” Dongfan Xuさん、Minghao Fanさんが、Student Research Previewで発表します。

Virginia Tech(バージニア工科大学)の Jeffrey S. Walling教授にご講演頂きました。 Speaker: Prof. Jeffrey S. Walling (Virginia Tech, USA) Title: Bits-to-Waves: Digital RF, mm-Wave and THz Systems to Enable the Next-G Abstract: Mixer-based transmitters have been dominant for approximately 100 years. However, for more than a decade RF-DACs have demonstrated the ability to combine the functionality of the DAC, upconverter and amplification stages of a transmitter into a single block. The switched-capacitor power amplifier (SCPA) is a versatile RF-DAC that operates in a voltage mode and uses transistors only as switches. This talk provides a tutorial introduction of the SCPA and presents architectural examples that enable both frequency reconfigurability and operation up to mm-Wave, supporting up to 3Gb/s transmission rates. New uses of algorithmic designs for RF passives will also be introduced. Speaker Bio: Jeff Walling received his BS from University of South Florida and his MS and PhD from University of Washington, all in Electrical Engineering. He has held industrial positions at Motorola, Intel, Qualcomm and Skyworks. His research has primarily focused on circuits for wireless communications and sensing. From 2012 to 2019, he was an assistant, then associate professor at University of Utah. Then he was head of RF transceivers at Tyndall National Institute in Cork, Ireland. Since 2021, he is an associate professor at Virginia Tech. He has served as an associate editor for TCAS-II, TCAS-I and JSSC, and on the technical program committees of the IEEE RFIC, ISSCC and NEWCAS conferences. He is a senior member of the IEEE and has more than 80 papers in peer reviewed conferences and journals.

韓国のDaejeonで開催されたIEEE Asian Solid-State Circuits Conference (A-SSCC)で発表しました． Dongfan Xu, Minzhe Tang, Haiyun Gu, Ziyuan Ren, Yilun Chen, Minghao Fan, Yuxuan Liu, Daxu Zhang, Yi Zhang, Zheng Li, Yuncheng Zhang, and Kenichi Okada, “A Ka-Band Time-Modulated Variable Gain Amplifier with 30-dB Gain Tuning and <2° Phase Variation via Duty Cycle Control” Sunghwan Park, Yudai Yamazaki, Carrel de Gomez, Chenxin Liu, Jun Sakamaki, Hiroyuki Sakai, Kazuaki Kunihiro, and Kenichi Okada, “A High-Efficient 154GHz 4TX/4RX FMCW Radar Chipset in 65nm CMOS” Kenichi Okada“How to cultivate good chip designers” Panel discussion “Millimeter-Wave Circuit Innovations for 6G and Beyond” KAIST EE Global Symposium IEEE/IEIE ICCE Asia“Millimeter-Wave Circuit Innovations for 6G and Beyond” also presented at Seoul National Univerisity

論文投稿完了したところで記念撮影しました！

2025年8月23日 OB/OG会を開催しました！ OB/OG MLが届いていない人は secretary@ssc.p.isct.ac.jp まで連絡ください！

2025年度第2回MCRG(Mobile Commuication Research Group)研究会にて、山崎雄大さんが最も優秀なポスター発表を行った研究者と認定されました。 おめでとうございます! 発表ポスタータイトル: 「次世代無線端末の実現に向けた 超小型サブテラヘルツ半導体無線機」

国立台湾大学のChung-Tse Michael Wu先生に訪問いただきました！

国立台湾大学のYu-Hsiang Cheng先生に訪問いただきました！

UCSBのMark Rodwell教授にご講演頂きました！ Lecturer: Prof. Mark Rodwell（University of California, Santa Barbara） Title: 100-300 GHz Wireless: transistors, ICs, systems Date & Time: Tuesday, July 15, 2025, 15:45 – 17:30 Abstract: We describe the opportunities, and the research challenges, presented in the development of 100-300GHz wireless communications and imaging systems. In such links, short wavelengths permit massive spatial multiplexing both for network nodes and point-point links, permitting aggregate transmission capacities approaching 1Tb/s. 100-300GHz radar imaging systems can provide thousands of image pixels and sub-degree angular resolution from small apertures, supporting foul-weather driving and aviation. Challenges include the mm-wave IC designs, the physical design of the front-end modules, the complexity of the back-end digital beamformer required for spatial multiplexing, and, for imaging, the development of system architectures requiring far fewer RF channels than the number of image pixels. We will describe transistor development, IC design, and system design, and describe our efforts to develop 140GHz massive MIMO wireless hubs, and 210GHz and 280GHz MIMO backhaul links.

優れた研究成果を上げた理工系の学生や企業の若手研究者らを表彰する「第38回 独創性を拓く 先端技術大賞」（主催・産経新聞社、後援・文部科学省、経済産業省、ニッポン放送、特別協力・アカリク）の授賞式が7月14日、高円宮妃久子さまをお迎えして東京・元赤坂の明治記念館で開かれ、博士課程の山崎雄大さんが学生部門の最高賞である「文部科学大臣賞」を受賞しました。

2025/8/23(土)にOB/OG会を開催します！ MLで連絡していますが、受け取れていない方は連絡ください！

独自の時分割MIMOフェーズドアレイ技術による28 GHz受信機を開発。 高データレートと高面積効率・低消費電力を両立させる受信機ICを実現。 地上と宇宙をつなぐ高データレートの6G無線通信システムの実用化を加速。

6G端末向け150 GHz帯超小型・低消費電力アンテナ一体無線機モジュールを世界で初めて開発 超高密度のフェーズドアレイ無線機ICで、携帯端末での高速無線通信を実現 医療手術室でのXRアプリケーションなどへの応用に期待

VLSI Symposiumで発表しました。下記はデモの様子。

博士研究員のWang Chunさんが、手島精一記念研究賞（留学生研究賞）を受賞しました。おめでとうございます！

Eveninig Panel: “Future of Analog Design: Still Magical or Mostly Digital?” Forum: Wireless Communication Technology for Space Applications: From Satellite to Dish and Smartphones Kenichi Okada, Institute of Science Tokyo, Tokyo, Japan “Foldable Phased-Array Transceivers for Satellite Communications”

Xu Dingxinさんが、IEEE SSCS Predoctoral Achievement Awardを受賞しました！

高電力効率と線形性を両立する無線通信用送信機CMOS ICを開発 複雑なコーディックを使用しない新しいデジタル送信機のアーキテクチャを提案 小型・低消費電力でさまざまなIoT機器に搭載可能であり、IoTの普及に貢献