Latest News

At the 2nd MCRG (Mobile Communication Research Group) Symposium of 2025, Mr. Yudai Yamazaki was recognized as the researcher who delivered the most outstanding poster presentation. Congratulations! **Poster Title: “**A 150GHz Compact Phased-Array Transceiver for 6G UE"

Prof. Chung-Tse Michael Wu (National Taiwan University) visited our lab!

Prof. Yu-Hsiang Cheng (National Taiwan University) visited our lab!

Prof. Mark Rodwell (UCSB) visited our university at July 15th, 2025! Welcome!!! 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.

Mr. Yudai Yamazaki received the highest honor in the student category: the Minister of Education, Culture, Sports, Science and Technology Award.

We will hold an OB/OG gathering on Saturday, August 23, 2025! We have sent out the information via the mailing list, but if you haven’t received it, please contact us!

A novel time-division MIMO technology enables phased-array receivers to operate faster with exceptional area efficiency and low power, as reported by researchers from Institute of Science Tokyo. The proposed system significantly reduces circuit complexity for 5G and 6G networks, including non-terrestrial nodes, by reusing signal paths through fast switching. It demonstrated a record-setting 38.4 Gbps data rate across eight streams in a 65 nm CMOS integrated circuit.

An ultra-compact, low-power 150 GHz radio module enabling high data rates in mobile devices has been developed by researchers from Japan. Targeting 6G user equipment, the proposed design integrates a phased-array transceiver with several key innovations to overcome the main challenges of operating at frequencies in the 150 GHz band. This work could thus pave the way to unprecedented connectivity in terminal devices, way surpassing existing 5G technology.

VLSI Symposium demonstration

Congratulations! Dr. Chun Wang won Seiichi Tejima Research Award.

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”

Congratulations! Dr. Xu Dingxin won IEEE SSCS Predoctoral Achievement Award

Three innovative design techniques substantially enhance wireless transmitter performance and can boost power efficiency and elevate data rates concurrently, as reported by the researchers from Science Tokyo, Japan. This effectively aligns with the growing demand for speed and efficiency, accelerating the widespread deployment of wireless devices. This enables synergistic operation of wireless electronic devices and better quality of modern life.

Presentations in ISSCC 2025 Forum Presentation Kenichi Okada, “Foldable Phased-Array Transceivers for Satellite Communications” Regular Session Yuncheng Zhang, et al.,“A Power-Efficient CORDIC-less Digital Polar Transmitter Using 1b DSM-Based PA Supporting 256-QAM” Sena Kato, et al.,“A 256-Element Ka-Band CMOS Phased-Array Receiver Using Switch-Type Quadrature-Hybrid-First Architecture for Small Satellite Constellations” (Shirane Lab) Yudai Yamazaki, Minzhe Tang, Daxu Zhang will present their work in Student Research Preview.

Prof. Hua Wang (ETH) visited our lab at Nov. 22th, 2024! Welcome!!! Speaker: Prof. Hua Wang (ETH, Zurich, Swiss) Title: “Fundamentals of RF and mm-Wave Power Amplifier Designs” Abstract: This talk presents a focused overview of mm-wave power-amplifier (PA) designs in silicon, including design fundamentals, advanced PA architectures, and state-of-the-art design examples. As phased arrays and MIMO systems have become ubiquitous in various wireless communication and sensing applications, they pose a completely new level of system complexity and different and often tighter requirements on the wireless frontend electronics, in particular the PAs. The talk will start with an introduction of PA performance metrics and their impacts on wireless systems. Next, it presents the design fundamentals of PA active devices and passive networks as well as power combining strategies. The tutorial discusses advanced PA architectures, including Doherty, Outphasing, LMBA, and Coupler-Balun Doherty PAs, for high efficiency, linearity, and bandwidth. Further, advance and challenges of high mm-Wave PAs in large-scaled arrays will be covered to address various emerging wireless applications. Finally, the talk will conclude with several state-of-the-art mm-wave PA design examples.

Prof. Matsuzawa and Prof. Okada are selected as top contributors of A-SSCC 2005-2023.

Demonstration of D-band Transceiver at EuMW!!

A great OB, working in NVIDIA, USA, visited our lab!!

Alumni Party! If you do not receive OB/OG ML, please contact secretaryssc.pe.titech.ac.jp !