Latest News

Cherry-blossom viewing!

Jitters are a common shortcoming of modern electronic devices using a high-frequency digital signal. While oversampling phase-locked loops (OSPLLs) can expand the loop bandwidth, effectively reducing jitter, conventional OSPLLs suffer from high jitter in noisy signal peak areas. Tokyo Tech researchers have instead suggested and demonstrated a non-uniform OSPLL that can efficiently suppress jitter through adaptive loop gain calibration. This novel architecture leads to more economical and power-efficient devices than conventional OSPLLs.

More than 40 lab members and alumni gathered after ISSCC plenary talk by Prof. Matsuzawa!

Publication in ISSCC 2023. Regular Session Junjun Qiu, et al., “A 32kHz-Reference 2.4GHz Fractional-N Nonuniform Oversampling PLL with Gain Boosted PD and Loop Gain Calibration” Dongwon You, et al., “A Small-Satellite-Mounted 256-Element Ka-Band CMOS Phased-Array Transmitter Achieving 63.8dBm EIRP Under 26.6W Power Consumption Using Single/Dual Circular Polarization Active Coupler” Xi Fu, et al., “A 2.95mW/element Ka-band CMOS Phased-Array Receiver Utilizing On-Chip Distributed Radiation Sensors in Low Earth Orbit Small Satellite Constellation” Plenary Talk Prof. Matsuzawa, “Shape the World With Mixed-Signal Integrated Circuits – Past, Present, and Future” Chun Wang and Dingxin Xu will present their work in Student Research Preview.

Prof. Emanuel Cohen came to our lab at November 29th, 2022! Welcome!!!

Publication in ISSCC 2022. Regular Session Jian Pang, et al., “A Power-Efficient 24-71GHz CMOS Phased-Array Receiver Utilizing Harmonic-Selection Technique Supporting 36-dB Inter-Band Blocker Rejection for 5G NR” Xi Fu, et al., “A 3.4mW/element Radiation-Hardened Ka-Band CMOS Phased-Array Receiver Utilizing Magnetic-Tuning Phase Shifter for Small Satellite Constellation” Michihiro Ide and Dongwon You will present their work in Student Research Preview.

Publication in ISSCC 2021. Regular Session Junjun Qiu, et al., “A 32kHz-Reference 2.4GHz Fractional-N Oversampling PLL with 200kHz Loop Bandwidth” Ibrahim Abdo, et al., “A 300GHz-Band Phased-Array Transceiver Using Bi-Directional Outphasing and Hartley Architecture in 65nm CMOS” Zheng Li, Zheng Sun, and Michihiro Ide will present their work in Student Research Preview.

Prof. Fa Dai, South China University of Technology (SCUT), came to our lab at November 8th, 2019! Welcome!!! 1108_1

Prof. Tsung-Hsien Lin, National Taiwan University (NTU), came to our lab at October 25th, 2019! IMG_20191025_175824

Prof. Kofi Makinwa, TU Delft, came to our lab!! IMG_20190801_182340

Great talk from Prof. Nan SUN, UT Austin! New Ingredients in the Pot - Rethink Analog IC Design -

Prof. Omeed Momeni（University of California, Davis ) visited our lab! He is very famous for mm-Wave and Terahertz Signal Generation, Amplification, and Beam Steering in Silicon.

Prof. Pietro Andreani（Lund University) visited our lab! He is very famous for VCO design. Andreani

Prof. R. Bogdan Staszewski from University College Dublin visited our Lab. on Saturday, July 14. He gave a seminar about AD-PLL. The seminar from Prof. R. Bogdan Staszewski. End Session Group Photo with Prof. R. Bogdan Staszewski.

Prof. Flynn（University of Michigan) visited our lab! He is very famous for ADC design.

Prof. Patrick Yue (HKUST) visited our labHe is very famous for VLC and gave a talk about this! DSC09607

Prof. Huei Wang (National Taiwan University) visited our lab! P1080054 He is very famous for CMOS RFIC design, but this time he gave a talk about “Harmonic Radar Development for Bee Searching”! 

Mr. Maki (now working for Panasonic) wins ISSCC Student-Research Preview Award(Honarable Montion)!! Shotaro Maki, Yuuki Seo, Kenichi Okada, and Akira Matsuzawa, “A 64QAM 60GHz Transceiver with Automatic Image Calibration,” IEEE International Solid-State Circuits Conference (ISSCC) Student Research Preview, San Francisco, CA, Feb. 2016.

Prof. Salvatore Levantino visited our lab!

Prof. Seung-Tak Ryu,KAIST, visited our laboratory! image