K. Okada

发表

An improved dual-conduction class-C VCO using a tail resistor

Kenichi Okada, Akira Matsuzawa, Yasuaki Takeuchi, 2011, 2011 6th European Microwave Integrated Circuit Conference.

A 484-μm2 21-GHz LC-VCO beneath a stacked-spiral inductor

K. Okada, A. Matsuzawa, R. Murakami, 2010, The 5th European Microwave Integrated Circuits Conference.

A 6-10 GHz CMOS Tunable Power Amplifier for Reconfigurable RF Transceivers

K. Okada, A. Matsuzawa, D. Imanishi, 2010 .

A 25MHz–6.44GHz LC-VCO using a 5-port inductor for multi-band frequency generation

K. Okada, A. Matsuzawa, W. Deng, 2011, 2011 IEEE Radio Frequency Integrated Circuits Symposium.

A 60 GHz 16 Gb / s 16 QAM Low-Power Direct-Conversion Transceiver Using Capacitive Cross-Coupling Neutralization in 65 nm CMOS

Kenichi Okada, Akira Matsuzawa, Tatsuya Yamaguchi, 2011 .

A 9.3MHz to 5.7GHz tunable LC-based VCO using a divide-by-N injection-locked frequency divider

Kenichi Okada, Akira Matsuzawa, Shoichi Hara, 2009, 2009 IEEE Asian Solid-State Circuits Conference.

A constant-current-controlled class-C VCO using a self-adjusting replica biasing scheme

K. Okada, A. Matsuzawa, W. Deng, 2013, 2013 European Microwave Integrated Circuit Conference.

A Flexible Element Antenna for Ka-Band Active Phased Array SATCOM Transceiver

K. Okada, A. Shirane, Hiraku Sakamoto, 2020, 2020 IEEE Asia-Pacific Microwave Conference (APMC).

A Low-Power Low-Phase-Noise CMOS VCO using RF SiP Technology

K. Okada, M. Sato, H. Ito, 2007, 2007 Asia-Pacific Microwave Conference.

Comparison of compact on-chip inductors embedded in wafer-level package

K. Okada, M. Sato, K. Masu, 2005, Proceedings Electronic Components and Technology, 2005. ECTC '05..

A 28GHz CMOS Phased-Array Transceiver Featuring Gain Invariance Based on LO Phase Shifting Architecture with 0.1-Degree Beam-Steering Resolution for 5G New Radio

Kenichi Okada, Bangan Liu, Shinichi Hori, 2018, 2018 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

Radiation of a Semi-rigid Cable Monopole Antenna Inserting into a 60GHz-band Oscillator Chip

J. Hirokawa, K. Okada, T. Tomura, 2018, 2018 International Symposium on Antennas and Propagation (ISAP).

Area reduction of millimeter-wave CMOS amplifier using narrow transmission line

Kenichi Okada, Akira Matsuzawa, Hiroki Asada, 2011, Asia-Pacific Microwave Conference 2011.

A Constant-Current-Controlled Class-C Voltage-Controlled Oscillator using Self-Adjusting Replica Bias Circuit

Kenichi Okada, Akira Matsuzawa, Teerachot Siriburanon, 2015, IEICE transactions on electronics.

Transmission line interconnect on Si CMOS LSI

K. Okada, K. Masu, H. Ito, 2006, 2006 8th International Conference on Solid-State and Integrated Circuit Technology Proceedings.

60 GHz injection locked frequency quadrupler with quadrature outputs in 65 nm CMOS process

K. Okada, A. Matsuzawa, R. Murakami, 2009, Asia-Pacific Microwave Conference.

A 80GHz voltage controlled oscillator utilizing a negative varactor in 90nm CMOS technology

K. Okada, A. Matsuzawa, W. Chaivipas, 2008, 2008 IEEE Asian Solid-State Circuits Conference.

A −194.0dBc/Hz FoM CMOS tail-filtering VCO using Helium-3 ion irradiation technique

K. Okada, A. Matsuzawa, Ning Li, 2016, 2016 11th European Microwave Integrated Circuits Conference (EuMIC).

On-chip variable inductor using MOSFET switches

Khoa Dang Pham, K. Masu, K. Okada, 2005, 2005 European Microwave Conference.

F3: Radio architectures and circuits towards 5G

Kenichi Okada, Ahmad Mirzaei, Stefano Pellerano, 2016, 2016 IEEE International Solid-State Circuits Conference (ISSCC).

A 68-dB Isolation 1.0-dB Loss Compact CMOS SPDT RF Switch Utilizing Switched Resonance Network

K. Okada, A. Shirane, Yun Wang, 2020, Intelligent Memory Systems.

Variable RF Inductor on Si CMOS Chip

Kenichi Okada, Hidetoshi Onodera, Kazuya Masu, 2003 .

A 0.5-V, 0.05-to-3.2 GHz LC-Based Clock Generator for Substituting Ring Oscillators under Low-Voltage Condition

Kenichi Okada, Akira Matsuzawa, Wei Deng, 2012, IEICE Trans. Electron..

A 60-GHz Sub-Sampling PLL Using A Dual-Step-Mixing ILFD,(invited)

Akira Matsuzawa, Tomohiro Ueno, Teerachot Siriburanon, 2014 .

A Multi-Stage 60GHz CMOS LNA Using Dual Noise-Matching Technique

Kenichi Okada, Akira Matsuzawa, Tatsuya Hirose, 2008 .

A -242dB FoM 4.2-mW ADC-PLL Using Digital Sub-Sampling Architecture

Akira Matsuzawa, 松澤昭, 岡田健一, 2015 .

A 20GHz Class-C VCO using noise sensitivity mitigation technique

Kenichi Okada, Akira Matsuzawa, Kento Kimura, 2015, 2015 IEEE 15th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

A 20-GHz Di ff erential Push-Push VCO for 60-GHz Frequency Synthesizer toward 256 QAM Wireless Transmission in 65-nm CMOS

K. Okada, A. Matsuzawa, Yun Wang, 2017 .

A 60-GHz 16QAM/8PSK/QPSK/BPSK

Kenichi Okada, Ning Li, Akira Matsuzawa, 2011 .

Inter-Stage Tunable Notch Filter for a Multi-Band WCDMA Receiver

Kenichi Okada, Akira Matsuzawa, Masaki Kanemaru, 2012, IEICE transactions on electronics.

Synthesis and Automatic Layout of Resistive Digital-to-Analog Converter Based on Mixed-Signal Slice Cell

Kenichi Okada, Akira Matsuzawa, Zule Xu, 2016, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

A 60-GHz CMOS Transmitter with Gain-Enhanced On-Chip Antenna for Short-Range Wireless Interconnections

Kenichi Okada, Ning Li, Akira Matsuzawa, 2015, IEICE Trans. Electron..

Electromagnetic Simulation of CMOS On-Chip Spiral Inductors in 5 GHz band

K. Okada, Ning Li, T. Hirano, 2019, 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.

Gain measurement of 60 GHz CMOS on-chip dipole antenna by proton irradiation

K. Okada, A. Matsuzawa, T. Hirano, 2017, 2017 International Symposium on Antennas and Propagation (ISAP).

Design of 60 GHz CMOS on-chip dipole antenna with 50 % radiation efficiency by helium-3 ion irradiation

M. Ando, J. Hirokawa, K. Okada, 2015, 2015 IEEE Conference on Antenna Measurements & Applications (CAMA).

A 64QAM 60GHz Transceiver with Automatic Image Calibration

Akira Matsuzawa, 松澤昭, Kenichi Okada, 2016 .

A 24 dB Gain 51-68 GHz Common Source Low Noise Amplifier Using Asymmetric-Layout Transistors

Kenichi Okada, Ning Li, Akira Matsuzawa, 2012, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

Characterization of Crossing Transmission Line Using Two-Port Measurements for Millimeter-Wave CMOS Circuit Design

Kenichi Okada, Akira Matsuzawa, Korkut Kaan Tokgoz, 2015, IEICE Trans. Electron..

Characterization of cross-line up to 110 GHz using two-port measurements

K. K. Tokgoz, K. Okada, A. Matsuzawa, 2015, 2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

C-12-21 Crossing Transmission Line Modeling Using Two-port Measurements

K. K. Tokgoz, K. Okada, A. Matsuzawa, 2013 .

A 28-GHz Fractional-N Frequency Synthesizer with Reference and Frequency Doublers for 5G Mobile Communications in 65nm CMOS

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2018, IEICE Trans. Electron..

Evaluation of L-2L De-Embedding Method Considering Misalignment of Contact Position for Millimeter-Wave CMOS Circuit Design

Kenichi Okada, Ning Li, Akira Matsuzawa, 2012, IEICE transactions on electronics.

An ADPLL-based High Interference Tolerant BLE Receiver with DAC Feedback Loop

Kenichi Okada, Akira Matsuzawa, Dexian Tang, 2018 .

A Fully-Synthesizable 10.06Gbps 16.1mW Injection-Locked CDR in 28nm FDSOI

Kenichi Okada, Akira Matsuzawa, Rui Wu, 2017, IEICE Trans. Electron..

An AM-PM Noise Mitigation Technique in Class-C VCO

Kenichi Okada, Akira Matsuzawa, Aravind Tharayil Narayanan, 2015, IEICE Trans. Electron..

C-12-22 Study of High Speed Encoder Using in Flash A/D Converter

Kenichi Okada, Akira Matsuzawa, Masaya Miyahara, 2007 .

A Study of Stability and Phase Noise of Tail Capacitive-Feedback VCOs

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2013, IEICE Trans. Electron..

C-12-15 A Fractional-N Sub-Sampling PLL using a Pipelined Phase-Interpolator aided DTC

Kenichi Okada, Akira Matsuzawa, Makihiko Katsuragi, 2015 .

C-12-9 A Fully Synthesized Fractional-N IL-PLL Using Only Digital Library

Akira Matsuzawa, Teerachot Siriburanon, Wei Deng, 2016 .

Frequency Synthesis Technique for 60 GHz Multi-Gbps Wireless

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2018, IoT and Low-Power Wireless.

A 20-GHz Differential Push-Push VCO for 60-GHz Frequency Synthesizer toward 256 QAM Wireless Transmission in 65-nm CMOS

Kenichi Okada, Akira Matsuzawa, Yun Wang, 2017, IEICE Trans. Electron..

C-12-61 An Evaluation of Isolation between On-Chip PA and LNA

Kenichi Okada, Daisuke Imanishi, Akira Matsuzawa, 2009 .

A 0.0055mm2 480µW Fully Synthesizable PLL Using Stochastic TDC in 28nm FDSOI

Kenichi Okada, Akira Matsuzawa, Rui Wu, 2016, IEICE Trans. Electron..

A Low-Power Pulse-Shaped Duobinary ASK Modulator for IEEE 802.11ad Compliant 60GHz Transmitter in 65nm CMOS

Kenichi Okada, Akira Matsuzawa, Bangan Liu, 2018, IEICE Trans. Electron..

A Variable-Supply-Voltage 60-GHz PA with Consideration of HCI Issues for TDD Operation

Kenichi Okada, Akira Matsuzawa, Rui Wu, 2014, IEICE Trans. Electron..

Type-I Digital Ring-Based PLL Using Loop Delay Compensation and ADC-Based Sampling Phase Detector

Akira Matsuzawa, Zule Xu, Kenichi Okada, 2019, IEICE Trans. Electron..

Optimization Methodology of Layer Numbers with Circuit/Process Co-Design

K. Okada, T. Uezono, H. Nakashima, 2006 .

On-chip Spiral Inductors Integrated with Wafer-Level Package

K. Okada, M. Sato, K. Masu, 2004 .

Low-loss millimeter-wave passives on Si

K. Okada, S. Amakawa, N. Ishihara, 2010, 2010 IEEE International Conference on Wireless Information Technology and Systems.

A Power-Efficient CMOS Multi-Band Phased-Array Receiver Covering 24–71-GHz Utilizing Harmonic-Selection Technique With 36-dB Inter-Band Blocker Tolerance for 5G NR

K. Okada, A. Shirane, Jian Pang, 2022, IEEE Journal of Solid-State Circuits.

21.1 A 28GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR

Kenichi Okada, Zheng Li, Takeshi Nakamura, 2019, 2019 IEEE International Solid- State Circuits Conference - (ISSCC).

A Compact 39-GHz 17.2-dBm Power Amplifier for 5G Communication in 65-nm CMOS

K. Okada, Rui Wu, Yun Wang, 2018, 2018 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

A 39-GHz 64-Element Phased-Array Transceiver With Built-In Phase and Amplitude Calibrations for Large-Array 5G NR in 65-nm CMOS

Yun Wang, Takeshi Nakamura, Bangan Liu, 2020, IEEE Journal of Solid-State Circuits.

A 28-GHz CMOS Phased-Array Transceiver Based on LO Phase-Shifting Architecture With Gain Invariant Phase Tuning for 5G New Radio

Kenichi Okada, Takeshi Nakamura, Bangan Liu, 2019, IEEE Journal of Solid-State Circuits.

A Power-Efficient 24-to-71 GHz CMOS Phased-Array Receiver Utilizing Harmonic-Selection Technique Supporting 36dB Inter-Band Blocker Rejection for 5G NR

K. Okada, A. Shirane, Jian Pang, 2022, IEEE International Solid-State Circuits Conference.

64-QAM 60-GHz CMOS Transceivers for IEEE 802.11ad/ay

Kenichi Okada, Ning Li, Ahmed Musa, 2017, IEEE Journal of Solid-State Circuits.

A Compact 37-40GHz CMOS Switch-Type Phase Shifter with Fine-Tuning Stage Achieving 0.4-dB RMS Gain Error

K. Okada, A. Shirane, Jian Pang, 2020, 2020 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA).

A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR

Yun Wang, Hanli Liu, Bangan Liu, 2020, IEEE Journal of Solid-State Circuits.

A 50.1-Gb/s 60-GHz CMOS Transceiver for IEEE 802.11ay With Calibration of LO Feedthrough and I/Q Imbalance

Kenichi Okada, Ning Li, Satoshi Kondo, 2019, IEEE Journal of Solid-State Circuits.

300-GHz-Band 120-Gb/s Wireless Front-End Based on InP-HEMT PAs and Mixers

Hideyuki Nosaka, Hideaki Matsuzaki, Ho-Jin Song, 2020, IEEE Journal of Solid-State Circuits.

A 60GHz CMOS power amplifier using capacitive cross-coupling neutralization with 16 % PAE

Kenichi Okada, Akira Matsuzawa, Hiroki Asada, 2011, 2011 6th European Microwave Integrated Circuit Conference.

A 1.8-67GHz Divide-by-4 ILFD Using Area-Efficient Transformer-Based Injection-Enhancing Technique

K. Okada, A. Shirane, Jian Pang, 2022, ESSCIRC 2022- IEEE 48th European Solid State Circuits Conference (ESSCIRC).

16.1 A 265μW Fractional-N Digital PLL with Seamless Automatic Switching Subsampling/Sampling Feedback Path and Duty-Cycled Frequency-Locked Loop in 65nm CMOS

Kenichi Okada, Teerachot Siriburanon, Zheng Sun, 2019, 2019 IEEE International Solid- State Circuits Conference - (ISSCC).

22.2 A 300GHz-Band Phased-Array Transceiver Using Bi-Directional Outphasing and Hartley Architecture in 65nm CMOS

Kenichi Okada, Hideyuki Nosaka, Ibrahim Abdo, 2021, 2021 IEEE International Solid- State Circuits Conference (ISSCC).

A 273–301-GHz Amplifier With 21-dB Peak Gain in 65-nm Standard Bulk CMOS

K. K. Tokgoz, K. Okada, I. Watanabe, 2019, IEEE Microwave and Wireless Components Letters.

300-GHz. 100-Gb/s InP-HEMT Wireless Transceiver Using a 300-GHz Fundamental Mixer

Kenichi Okada, Hideyuki Nosaka, Hideaki Matsuzaki, 2018, 2018 IEEE/MTT-S International Microwave Symposium - IMS.

Fine and wide frequency tuning digital controlled oscillators utilizing capacitance position sensitivity in distributed resonators

A. Matsuzawa, W. Chaivipas, T. Ito, 2007, 2007 IEEE Asian Solid-State Circuits Conference.

Measurement of integrated PA-to-LNA isolation on Si CMOS chip

Kenichi Okada, Akira Matsuzawa, Ryo Minami, 2010, 2010 Asia-Pacific Microwave Conference.

On-chip transmission line interconnect for Si CMOS LSI

K. Masu, K. Okada, H. Ito, 2006, Digest of Papers. 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

A Pulse-Tail-Feedback LC-VCO with 700Hz Flicker Noise Corner and -195dBc FoM

Aravind Tharayil Narayanan, Kenichi Okada, K. Okada, 2019, IEICE Trans. Electron..

A tail-feedback VCO with self-adjusting current modulation scheme

Kenichi Okada, Akira Matsuzawa, Wei Deng, 2014, 2014 44th European Microwave Conference.

Full Four-Channel 6.3-Gb/s 60-GHz CMOS Transceiver With Low-Power Analog and Digital Baseband Circuitry

Kenichi Okada, Ning Li, Ahmed Musa, 2013, IEEE Journal of Solid-State Circuits.

A Fast-Beam-Switching 28-GHz Phased-Array Transceiver Supporting Cross-Polarization Leakage Self-Cancellation

Kenichi Okada, Shinichi Hori, Tomoya Kaneko, 2021, 2021 Symposium on VLSI Circuits.

A 28-GHz Phased-Array Relay Transceiver for 5G Network Using Vector-Summing Backscatter with 24-GHz Wireless Power and LO Transfer

Kenichi Okada, Atsushi Shirane, Jian Pang, 2021, 2021 Symposium on VLSI Circuits.

A 28-GHz Phased-Array Relay Transceiver for 5G Network Using Vector-Summing Backscatter With 24-GHz Wireless Power and LO Transfer

K. Okada, A. Shirane, K. Yanagisawa, 2022, IEEE Journal of Solid-State Circuits.

ULPAC: A Miniaturized Ultralow-Power Atomic Clock

Aravind Tharayil Narayanan, Kazuhiko Adachi, Hans Herdian, 2019, IEEE Journal of Solid-State Circuits.

Millimeter-Wave CMOS Phased-Array Transceiver for 5G and Beyond

K. Okada, 2020, 2020 IEEE International Electron Devices Meeting (IEDM).

A Sub-Harmonic Injection-Locked Quadrature Frequency Synthesizer With Frequency Calibration Scheme for Millimeter-Wave TDD Transceivers

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2013, IEEE Journal of Solid-State Circuits.

A pulse-driven LC-VCO with a figure-of-merit of −192dBc/Hz

Kenichi Okada, Akira Matsuzawa, Aravind Tharayil Narayanan, 2014, ESSCIRC 2014 - 40th European Solid State Circuits Conference (ESSCIRC).

Class-C VCO With Amplitude Feedback Loop for Robust Start-Up and Enhanced Oscillation Swing

Kenichi Okada, Akira Matsuzawa, Wei Deng, 2013, IEEE Journal of Solid-State Circuits.

A Dual-Conduction Class-C VCO for a Low Supply Voltage

Kenichi Okada, Akira Matsuzawa, Rui Murakami, 2012, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

A feedback class-C VCO with robust startup condition over PVT variations and enhanced oscillation swing

Kenichi Okada, Akira Matsuzawa, Wei Deng, 2011, 2011 Proceedings of the ESSCIRC (ESSCIRC).

A Low Phase Noise Quadrature Injection Locked Frequency Synthesizer for MM-Wave Applications

Win Chaivipas, Kenichi Okada, Ahmed Musa, 2011, IEEE Journal of Solid-State Circuits.

A 0.114-mW dual-conduction class-C CMOS VCO with 0.2-V power supply

Kenichi Okada, Akira Matsuzawa, Rui Murakami, 2009, 2009 Symposium on VLSI Circuits.

19.4 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

K. Okada, Takashi Eishima, M. Higaki, 2023, 2023 IEEE International Solid- State Circuits Conference (ISSCC).

A Ka- Band Dual Circularly Polarized CMOS Transmitter with Adaptive Scan Impedance Tuner and Active XPD Calibration Technique for Satellite Terminal

K. Okada, A. Shirane, Dongwon You, 2022, 2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

Kenichi Okada, Bangan Liu, Shinichi Hori, 2021, IEEE Journal of Solid-State Circuits.

A 2.95mW/element Ka-band CMOS Phased-Array Receiver Utilizing On-Chip Distributed Radiation Sensors in Low-Earth-Orbit Small Satellite Constellation

K. Okada, Takashi Eishima, A. Shirane, 2023, 2023 IEEE International Solid- State Circuits Conference (ISSCC).

A 39GHz 64-Element Phased-Array CMOS Transceiver with Built-in Calibration for Large-Array 5G NR

Yun Wang, Rui Wu, Bangan Liu, 2019, 2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

A 28GHz CMOS Phase Shifter Supporting 11.2Gb/s in 256QAM with an RMS Gain Error of 0.13dB for 5G Mobile Network

Kenichi Okada, Zheng Li, Jian Pang, 2018, 2018 48th European Microwave Conference (EuMC).

A 3.4mW/element Radiation-Hardened Ka-Band CMOS Phased-Array Receiver Utilizing Magnetic-Tuning Phase Shifter for Small Satellite Constellation

K. Okada, A. Shirane, Dongwon You, 2022, 2022 IEEE International Solid- State Circuits Conference (ISSCC).

A Ka-Band SATCOM Transceiver in 65-nm CMOS With High-Linearity TX and Dual-Channel Wide-Dynamic-Range RX for Terrestrial Terminal

K. Okada, A. Shirane, K. Yanagisawa, 2021, IEEE Journal of Solid-State Circuits.

A Ka-Band 64-Element Deployable Active Phased-Array TX on a Flexible Hetero Segmented Liquid Crystal Polymer for Small Satellites

K. Okada, A. Shirane, Hiraku Sakamoto, 2023, IEEE Microwave and Wireless Technology Letters.

300-GHz 120-Gb/s Wireless Transceiver with High-Output-Power and High-Gain Power Amplifier Based on 80-nm InP-HEMT Technology

H. Nosaka, K. Okada, H. Sugiyama, 2019, 2019 IEEE BiCMOS and Compound semiconductor Integrated Circuits and Technology Symposium (BCICTS).

A 300GHz Wireless Transceiver in 65nm CMOS for IEEE802.15.3d Using Push-Push Subharmonic Mixer

Hideyuki Nosaka, Kenichi Okada, Ibrahim Abdo, 2020, 2020 IEEE/MTT-S International Microwave Symposium (IMS).

A 120Gb/s 16QAM CMOS millimeter-wave wireless transceiver

Kenichi Okada, Akira Matsuzawa, Jian Pang, 2018, 2018 IEEE International Solid - State Circuits Conference - (ISSCC).

29.4 Ultra-Low-Power Atomic Clock for Satellite Constellation with 2.2×10-12 Long-Term Allan Deviation Using Cesium Coherent Population Trapping

Kenichi Okada, Aravind Tharayil Narayanan, Kazuhiko Adachi, 2019, 2019 IEEE International Solid- State Circuits Conference - (ISSCC).

A 60-GHz 3.0-Gb/s Spectrum Efficient BPOOK Transceiver for Low-Power Short-Range Wireless in 65-nm CMOS

Kenichi Okada, Ning Li, Akira Matsuzawa, 2019, IEEE Journal of Solid-State Circuits.

A 0.85mm2 BLE Transceiver with Embedded T/R Switch, 2.6mW Fully-Passive Harmonic Suppressed Transmitter and 2.3mW Hybrid-Loop Receiver

Kenichi Okada, Hanli Liu, Zheng Sun, 2018, ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC).

Accurate Transistor Modeling by Three-Parameter Pad Model for Millimeter-Wave CMOS Circuit Design

Kenichi Okada, Akira Matsuzawa, Shinji Sato, 2016, IEEE Transactions on Microwave Theory and Techniques.

Evaluation of a multi-line de-embedding technique for millimeter-wave CMOS circuit design

Kenichi Okada, Ning Li, Akira Matsuzawa, 2010, 2010 Asia-Pacific Microwave Conference.

Evaluation of a Multi-Line De-Embedding Technique up to 110 GHz for Millimeter-Wave CMOS Circuit Design

Kenichi Okada, Ning Li, Akira Matsuzawa, 2010, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

CMOS device modeling for millimeter-wave power amplifiers

Kenichi Okada, Ning Li, Akira Matsuzawa, 2009, 2009 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

Analysis of Effective Material Properties of Metal Dummy Fills in a CMOS Chip

Kenichi Okada, Ning Li, Ning Li, 2017, IEICE transactions on communications.

Electromagnetic simulation modeling of silicon substrate for 60 GHz on-chip differential-feed dipole antenna

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2013 .

Electromagnetic analysis of effective anisotropic material parameters for metal dummies in a CMOS chip

J. Hirokawa, K. Okada, T. Hirano, 2012, Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation.

Eigenmode Analysis of Propagation Constant for a Microstrip Line with Dummy Fills on a Si CMOS Substrate

Kenichi Okada, Makoto Ando, Jiro Hirokawa, 2011, IEICE Trans. Electron..

A Bi-Directional 300-GHz-Band Phased-Array Transceiver in 65-nm CMOS With Outphasing Transmitting Mode and LO Emission Cancellation

K. K. Tokgoz, Carrel da Gomez, H. Nosaka, 2022, IEEE Journal of Solid-State Circuits.

In Vivo Batteryless Wireless Communication System for Bio-MEMS Sensors

Kenichi Okada, Kazuya Masu, Tomohiro Yamada, 2005 .

300-GHz-Band Four-Element CMOS-InP Hybrid Phased-Array Transmitter With 36circ Steering Range

M. Nagatani, K. Okada, A. Pander, 2023, IEEE Microwave and Wireless Technology Letters.

A Ka-Band 16-Element Deployable Active Phased Array Transmitter for Satellite Communication

K. Okada, A. Shirane, Hiraku Sakamoto, 2021, 2021 IEEE MTT-S International Microwave Symposium (IMS).

3 A 64-QAM 60 GHz CMOS Transceiver with 4-Channel Bonding

Kenichi Okada, Akira Matsuzawa, Satoshi Kondo, 2013 .

A 60-GHz 16QAM/8PSK/QPSK/BPSK Direct-Conversion Transceiver for IEEE802.15.3c

Win Chaivipas, Kenichi Okada, Ning Li, 2011, IEEE Journal of Solid-State Circuits.

Battery-less wireless communication system through human body for in-vivo healthcare chip

K. Masu, K. Okada, T. Yamada, 2004, Digest of Papers. 2004 Topical Meeting onSilicon Monolithic Integrated Circuits in RF Systems, 2004..

A current-reuse Class-C LC-VCO with an adaptive bias scheme

Kenichi Okada, Akira Matsuzawa, Teerachot Siriburanon, 2013, 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).

A low phase noise LC-VCO with a high-Q inductor fabricated by wafer level package technology

K. Okada, K. Masu, T. Aizawa, 2008, 2008 IEEE Radio Frequency Integrated Circuits Symposium.

Digitally-Assisted Analog and RF CMOS Circuit Design for Software-Defined Radio

Kenichi Okada, Shouhei Kousai, K. Okada, 2011 .

A Ka-Band Deployable Active Phased Array Transmitter Fabricated on 4-Layer Liquid Crystal Polymer Substrate for Small-Satellite Mount

Carrel da Gomez, K. Okada, A. Shirane, 2023, IEEE Access.

A Flexible Implementation of Ka-Band Active Phased Array for Satellite Communication

K. Okada, A. Shirane, Hiraku Sakamoto, 2022, Intelligent Memory Systems.

A 39-GHz CMOS Bi-Directional Doherty Phased-Array Beamformer Using Shared-LUT DPD with Inter-Element Mismatch Compensation Technique for 5G Base-Station

K. Okada, A. Shirane, S. Hori, 2022, 2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits).

A CMOS Ka-Band Wireless Transceiver for Future Non-Terrestrial 6G Networks

K. Okada, A. Shirane, Yun Wang, 2020, 2020 IEEE 15th International Conference on Solid-State & Integrated Circuit Technology (ICSICT).

A 39-GHz CMOS Bidirectional Doherty Phased- Array Beamformer Using Shared-LUT DPD With Inter-Element Mismatch Compensation Technique for 5G Base Station

K. Okada, A. Shirane, S. Hori, 2023, IEEE Journal of Solid-State Circuits.

A 41-GHz 19.4-dBm PSATCMOS Doherty Power Amplifier for 5G NR Applications

K. Okada, A. Shirane, Jian Pang, 2022, 2022 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA).

Millimeter-Wave CMOS Phased-Array Transceivers for 5G and Beyond

K. Okada, A. Shirane, S. Hori, 2022, 2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC).

A 6.4 nW 1.7% Relative Inaccuracy CMOS Temperature Sensor Utilizing Sub-Thermal Drain Voltage Stabilization and Frequency-Locked Loop

K. Okada, A. Islam, T. Someya, 2020, IEEE Solid-State Circuits Letters.

A 100–123GHz CMOS frequency doubler with 5.5dBm output power and high fundamental rejection

K. K. Tokgoz, K. Okada, A. Matsuzawa, 2017, 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).

A full 4-channel 6.3Gb/s 60GHz direct-conversion transceiver with low-power analog and digital baseband circuitry

Kenichi Okada, Ning Li, Ahmed Musa, 2012, 2012 IEEE International Solid-State Circuits Conference.

20.3 A 64-QAM 60GHz CMOS transceiver with 4-channel bonding

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2014, 2014 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC).

A Low-Power Low-Noise mm-Wave Subsampling PLL Using Dual-Step-Mixing ILFD and Tail-Coupling Quadrature Injection-Locked Oscillator for IEEE 802.11ad

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2016, IEEE Journal of Solid-State Circuits.

A 220-294 GHz Power Amplifier with 10-dBm Psat and 2.2% PAE in 250-nm InP DHBT

M. Nagatani, K. Okada, H. Hamada, 2022, BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium.

A −194 dBc/Hz FoM VCO with Low-Supply Sensitivity for Ultra-Low-Power Atomic Clock

K. Okada, A. Shirane, Rui Wu, 2018, 2018 Asia-Pacific Microwave Conference (APMC).

A Fractional-N Sub-Sampling PLL using a Pipelined Phase-Interpolator With an FoM of -250 dB

Kenichi Okada, Akira Matsuzawa, Satoshi Kondo, 2016, IEEE Journal of Solid-State Circuits.

A 20 GHz Push-Push Voltage-Controlled Oscillator Using Second-Harmonic Peaking Technique for a 60 GHz Frequency Synthesizer

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2013, IEICE Trans. Electron..

Analysis of Phase Noise Degradation Considering Switch Transistor Capacitances for CMOS Voltage Controlled Oscillators

Kenichi Okada, Akira Matsuzawa, Rui Murakami, 2010, IEICE Trans. Electron..

The Optimum Design Methodology of Low-Phase-Noise LC-VCO Using Multiple-Divide Technique

Kenichi Okada, Akira Matsuzawa, Rui Murakami, 2010, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

Spatial Sensitivity of Capacitors in Distributed Resonators and Its Application to Fine and Wide Frequency Tuning Digital Controlled Oscillators

Win Chaivipas, Kenichi Okada, Akira Matsuzawa, 2008, IEICE Trans. Electron..

Design space exploration of low-phase-noise LC-VCO using multiple-divide technique

Kenichi Okada, Akira Matsuzawa, Takeshi Ito, 2008, 2008 IEEE International Symposium on Circuits and Systems.

A Low-Jitter Injection-Locked Clock Multiplier Using 97-μW Transformer-Based VCO with 18-kHz Flicker Noise Corner

K. Okada, A. Shirane, Hongye Huang, 2021, IEICE transactions on electronics.

Energy-efficient Frequency Synthesizer Design for IoT

K. Okada, 2015 .

A Design Optimization of Low-Phase-Noise LC-VCO Using Multiple-Divide Technique

K. Okada, A. Matsuzawa, R. Murakami, 2009 .

A 80 GHz Voltage Controlled Oscillator With a Negative Varactor in 90 nm CMOS Technology

Win Chaivipas, Kenichi Okada, Akira Matsuzawa, 2008 .

A 300-GHz Band Chip-to-Waveguide Transition on Proton-Irradiated Standard 65nm CMOS Si Substrate for Flip-Chip Packaging Implementation

K. Okada, A. Shirane, Takeshi Inoue, 2022, 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022.

Millimeter-wave InP Device Technologies for Ultra-high Speed Wireless Communications toward Beyond 5G

K. Okada, H. Nosaka, H. Sugiyama, 2019, 2019 IEEE International Electron Devices Meeting (IEDM).

A 2.2 GHz -242 dB-FOM 4.2 mW ADC-PLL Using Digital Sub-Sampling Architecture

Kenichi Okada, Akira Matsuzawa, Satoshi Kondo, 2016, IEEE Journal of Solid-State Circuits.

A 0.4-ps-Jitter −52-dBc-Spur Synthesizable Injection-Locked PLL With Self-Clocked Nonoverlap Update and Slope-Balanced Subsampling BBPD

Kenichi Okada, Wei Deng, Bangan Liu, 2019, IEEE Solid-State Circuits Letters.

A Sub-mW Fractional- ${N}$ ADPLL With FOM of −246 dB for IoT Applications

Kenichi Okada, Dexian Tang, Huy Cu Ngo, 2018, IEEE Journal of Solid-State Circuits.

A DPLL-Centric Bluetooth Low-Energy Transceiver With a 2.3-mW Interference-Tolerant Hybrid-Loop Receiver in 65-nm CMOS

Kenichi Okada, Hanli Liu, Zhijie Chen, 2018, IEEE Journal of Solid-State Circuits.

A Compact and Low-Power Fractionally Injection-Locked Quadrature Frequency Synthesizer Using a Self-Synchronized Gating Injection Technique for Software-Defined Radios

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2014, IEEE Journal of Solid-State Circuits.

A Fully Synthesizable All-Digital PLL With Interpolative Phase Coupled Oscillator, Current-Output DAC, and Fine-Resolution Digital Varactor Using Gated Edge Injection Technique

Kenichi Okada, Akira Matsuzawa, Satoshi Kondo, 2015, IEEE Journal of Solid-State Circuits.

A Compact, Low-Power and Low-Jitter Dual-Loop Injection Locked PLL Using All-Digital PVT Calibration

Kenichi Okada, Ahmed Musa, Akira Matsuzawa, 2014, IEEE Journal of Solid-State Circuits.

A 32-kHz-Reference 2.4-GHz Fractional-N Oversampling PLL With 200-kHz Loop Bandwidth

Kenichi Okada, Hans Herdian, Masaya Miyahara, 2021, IEEE Journal of Solid-State Circuits.

A new figure of Merit of LC oscilators considering frequency tuning range

Kenichi Okada, Akira Matsuzawa, Takahiro Sato, 2011, 2011 9th IEEE International Conference on ASIC.

An ADPLL-centric bluetooth low-energy transceiver with 2.3mW interference-tolerant hybrid-loop receiver and 2.9mW single-point polar transmitter in 65nm CMOS

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2018, 2018 IEEE International Solid - State Circuits Conference - (ISSCC).

A Fully Synthesizable Fractional-N MDLL With Zero-Order Interpolation-Based DTC Nonlinearity Calibration and Two-Step Hybrid Phase Offset Calibration

Bangan Liu, Huy Cu Ngo, Wei Deng, 2021, IEEE Transactions on Circuits and Systems I: Regular Papers.

A 28-GHz fractional-N frequency synthesizer with reference and frequency doublers for 5G cellular

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2015, ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC).

An ultra-compact LC-VCO using a stacked-spiral inductor

Kenichi Okada, Akira Matsuzawa, Rui Murakami, 2011, IEICE Electron. Express.

Reconfigurable RF CMOS Circuit for Cognitive Radio

Kenichi Okada, Kazuya Masu, K. Okada, 2008, IEICE Trans. Commun..

CMOS THz Phased-Array Transceivers for Beyond 5G

K. Okada, 2021, International Symposium on Radio-Frequency Integration Technology.

Dual-Layer Proton Irradiation for Creating Thermally-Stable High-Resistivity Region in Si CMOS Substrate

Kenichi Okada, Hans Herdian, Atsushi Shirane, 2021, ESSDERC 2021 - IEEE 51st European Solid-State Device Research Conference (ESSDERC).

13.3 A 56Gb/s W-band CMOS wireless transceiver

Kenichi Okada, Akira Matsuzawa, Jian Pang, 2016, 2016 IEEE International Solid-State Circuits Conference (ISSCC).

A 0.85mm2 BLE Transceiver Using an On-Chip Harmonic-Suppressed RFIO Circuitry With T/R Switch

Dexian Tang, Wei Deng, Hanli Liu, 2021, IEEE Transactions on Circuits and Systems I: Regular Papers.

A 60 GHz up-conversion mixer using asymmetric layout with −41.1 dBc LO leakage

A. Matsuzawa, K. Okada, Y. Tsukui, 2013, 2013 IEEE 4th Latin American Symposium on Circuits and Systems (LASCAS).

Millimeter-wave CMOS Transceiver Toward 1Tbps Wireless Communication

Kenichi Okada, K. K. Tokgoz, K. Okada, 2019, 2018 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA).

Millimeter-Wave CMOS Transceiver Toward 1Tbps Wireless Communication

Kenichi Okada, K. Okada, 2018, 2018 Asia-Pacific Microwave Conference (APMC).

WSK: 60GHz WiGig Frequency Synthesizer Using Injection Locked Oscillator

Kenichi Okada, K. Okada, 2014 .

A three-stage 60GHz CMOS LNA using dual noise-matching technique for 5dB NF

Ning Li, A. Matsuzawa, K. Okada, 2008, 2008 Asia-Pacific Microwave Conference.

A 28.16-Gb/s Area-Efficient 60-GHz CMOS Bidirectional Transceiver for IEEE 802.11ay

Bangan Liu, Makihiko Katsuragi, Kento Kimura, 2020, IEEE Transactions on Microwave Theory and Techniques.

High- $Q$ Inductors on Locally Semi-Insulated Si Substrate by Helium-3 Bombardment for RF CMOS Integrated Circuits

Kenichi Okada, Akira Matsuzawa, Ning Li, 2014, IEEE Transactions on Electron Devices.

A Fully-Synthesizable Fractional-N Injection-Locked PLL for Digital Clocking with Triangle/Sawtooth Spread-Spectrum Modulation Capability in 5-nm CMOS

Kenichi Okada, Bangan Liu, Haosheng Zhang, 2020, IEEE Solid-State Circuits Letters.

32.7 A 32kHz-Reference 2.4GHz Fractional-N Oversampling PLL with 200kHz Loop Bandwidth

Kenichi Okada, Bangan Liu, Hans Herdian, 2021, 2021 IEEE International Solid- State Circuits Conference (ISSCC).

A 3.6 GHz Low-Noise Fractional-N Digital PLL Using SAR-ADC-Based TDC

Kenichi Okada, Akira Matsuzawa, Zule Xu, 2016, IEEE Journal of Solid-State Circuits.

14.1 A 0.048mm2 3mW synthesizable fractional-N PLL with a soft injection-locking technique

Kenichi Okada, Akira Matsuzawa, Teerachot Siriburanon, 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers.

A 1.2ps-jitter fully-synthesizable fully-calibrated fractional-N injection-locked PLL using true arbitrary nonlinearity calibration technique

Kenichi Okada, Hanli Liu, Akira Matsuzawa, 2018, 2018 IEEE Custom Integrated Circuits Conference (CICC).

An left handed material on Si CMOS chip with wafer level package process

K. Okada, K. Masu, T. Sato, 2006, 2006 Asia-Pacific Microwave Conference.

Characterization of On-Chip Multiport Inductors for Small-Area RF Circuits

Kenichi Okada, Kazuya Masu, Takeshi Ito, 2009, IEEE Transactions on Circuits and Systems I: Regular Papers.

A DC-7 GHz Small-Area Distributed Amplifier Using 5-port Inductors in a 180nm Si CMOS Technology

K. Okada, K. Masu, D. Kawazoe, 2006, 2006 IEEE Asian Solid-State Circuits Conference.

Via distribution model for yield estimation

Kenichi Okada, Kazuya Masu, Takumi Uezono, 2006, 7th International Symposium on Quality Electronic Design (ISQED'06).

Wide Tuning Range LC-VCO Using Variable Inductor for Reconfigurable RF Circuit

Kenichi Okada, Kazuya Masu, Hiroyuki Ito, 2005, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

A 0.026mm2 capacitance-to-digital converter for biotelemetry applications using a charge redistribution technique

A. Matsuzawa, T. Kurashina, K. Okada, 2007, 2007 IEEE Asian Solid-State Circuits Conference.