Ryo Ishikawa

发表

An expression of high-frequency characteristics on a high-density multilayer wiring board using an LC ladder network as a unit segment

Ryo Ishikawa, Norio Imai, Kazuhiko Honjo, 2007 .

Concurrent dual-band access GaN HEMT MMIC amplifier suppressing inter-band interference

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2017, 2017 IEEE MTT-S International Microwave Symposium (IMS).

Analysis of Millimeterwave Amplifier Module with Surface Wave Mode Transmission Line by FDTD Electromagnetic-Semiconductor Device Co-Simulation

Ryo Ishikawa, Kazuhiko Honjo, Masayuki Nakajima, 2008 .

High isolation MMIC switch design technique based on novel high-/low-pass switch concept

Ryo Ishikawa, Kazuhiko Honjo, Hiroshi Mizutani, 2015, 2015 European Microwave Conference (EuMC).

High Efficiency GaN HEMT Power Amplifier/Rectifier Module Design Using Time Reversal Duality

Ryo Ishikawa, Kazuhiko Honjo, 2015, 2015 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS).

22455 Damage Estimations of Steel Structures Based on the Concrete Cracks around Column Base : Part1: Result of Full Scale Frames Test with Exposed Column Base

Satoshi Yamada, Ryo Ishikawa, Masayuki Abe, 2013 .

GaN SPST MMIC switches based on HPF/LPF switching concept for high power applications

Ryo Ishikawa, Kazuhiko Honjo, Hiroshi Mizutani, 2016, 2016 46th European Microwave Conference (EuMC).

Reliable iris feature extraction by local thresholding with optimum block size

Ryo Ishikawa, Tomohiko Ohtsuka, 2017, 2017 International Conference on Biometrics and Kansei Engineering (ICBAKE).

UWB Active Balun Design with Small Group Delay Variation and Improved Return Loss

Ryo Ishikawa, Kazuhiko Honjo, Kyoung-Pyo Ahn, 2011, IEICE Trans. Electron..

A 1.2–2.0 GHz-band GaAs pHEMT cascode power amplifier MMIC consisting of independently biased transistors

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Distributed class-F/inverse class-F circuit considering up to arbitrary harmonics with parasitics compensation

Ryo Ishikawa, Kazuhiko Honjo, 2011, 2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications.

4.5-/4.9-GHz-Band Selective High-Efficiency GaN HEMT Power Amplifier by Characteristic Impedance Switching

Ryo Ishikawa, Kazuhiko Honjo, Kazuki Mashimo, 2018, IEICE Trans. Electron..

Microwave Class-F InGaP/GaAs HBT Power Amplifier Considering up to 7th-Order Higher Harmonic Frequencies

Ryo Ishikawa, Kazuhiko Honjo, Masato Seki, 2006, IEICE Trans. Electron..

Analytic parameter determination for thermal memory effect compensation circuit in microwave InGaP/GaAs HBT power amplifiers

Ryo Ishikawa, Kazuhiko Honjo, Junichi Kimura, 2011, Asia-Pacific Microwave Conference 2011.

Analytical Design Method for a Low-Distortion Microwave InGaP/GaAs HBT Amplifier Based on Transient Thermal Behavior in a GaAs Substrate

Ryo Ishikawa, Kazuhiko Honjo, Junichi Kimura, 2013, IEEE Transactions on Components, Packaging and Manufacturing Technology.

A Predistortion Diode Linearizer Technique with Automatic Average Power Bias Control for a Class-F GaN HEMT Power Amplifier

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2011, IEICE Trans. Electron..

Small-signal design consideration for two-dimensional change-over switch GaN MMICs

Ryo Ishikawa, Hiroshi Mizutani, Kazuhiko Honjo, 2020 .

Effect evaluation of countermeasure method for image information leakage by electromagnetic radiation from ITE

Yasunao Suzuki, Ryo Ishikawa, Kimihiro Tajima, 2019, 2019 International Symposium on Electromagnetic Compatibility - EMC EUROPE.

Impulse generator InGaP/GaAs HBT MMIC with differential output port for impulse UWB system

Ryo Ishikawa, Kazuhiko Honjo, 2009, 2009 European Microwave Integrated Circuits Conference (EuMIC).

Reversible high efficiency amplifier/rectifier circuit for wireless power transmission system

Ryo Ishikawa, Kazuhiko Honjo, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

Synthesis for Negative Group Delay Circuits Using Distributed and Second-Order RC Circuit Configurations

Ryo Ishikawa, Kazuhiko Honjo, Kyoung-Pyo Ahn, 2009, IEICE Trans. Electron..

RF Characteristics of Rectifier Devices for Ambient RF Energy Harvesting

Koichiro Ishibashi, Ryo Ishikawa, Jiro Ida, 2019, 2019 International Symposium on Electronics and Smart Devices (ISESD).

Accurate Distortion Prediction for Thermal Memory Effect in Power Amplifier Using Multi-Stage Thermal RC-Ladder Network

Yukio Takahashi, Ryo Ishikawa, Kazuhiko Honjo, 2007, IEICE Trans. Electron..

Analysis on rejection band for a practical broadband balun using an asymmetric coupled-line in free space

Ryo Ishikawa, Kazuhiko Honjo, Daiki Endo, 2014, 2014 Asia-Pacific Microwave Conference.

InGaP/GaAs HBT MMIC Amplifier with Active Balun for Ultra-Wideband Self-Complementary Antenna

Ryo Ishikawa, Kazuhiko Honjo, Masao Shimada, 2006, IEICE Trans. Electron..

InGaAs MMIC SPST Switch Based on HPF/LPF Switching Concept With Periodic Structure

Ryo Ishikawa, Kazuhiko Honjo, Hiroshi Mizutani, 2016, IEEE Transactions on Microwave Theory and Techniques.

Spatially Modulated Communication Method Using Dual Scatterers Embedded with Lumped Elements for Wireless Power Transmission

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2013, IEICE Trans. Commun..

Distortion reduction of a GaN HEMT Doherty power amplifier with a series connected load

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2010, 2010 Asia-Pacific Microwave Conference.

Development of the Meso-Macro Multiscale Analysis Method with the Use of Discrete Dislocation Mechanics

Ryosuke Matsumoto, Michihiko Nakagaki, Ryo Ishikawa, 2004 .

Analysis of millimeter-wave amplifier module with surface wave mode transmission line by FDTD electromagnetic-semiconductor device co-simulation

Ryo Ishikawa, Kazuhiko Honjo, Masayuki Nakajima, 2010 .

Fully Integrated Asymmetric Doherty Amplifier Based on Two-Power-Level Impedance Optimization

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2018, 2018 48th European Microwave Conference (EuMC).

Evaluating body movements of a drowsy driver with pressure distribution sensors

Makoto Itoh, Toshiyuki Inagaki, Ryo Ishikawa, 2015 .

Miniaturization of Double Stub Resonators Using Lumped-Element Capacitors for MMIC Applications

Shinichi Tanaka, Ryo Ishikawa, Kazuhiko Honjo, 2016, IEICE Trans. Electron..

InGaP/GaAs HBT MMIC Amplifier with Low Power Consumption and Low Noise Characteristics for Full-Band UWB Receiver Systems

Ryo Ishikawa, Kazuhiko Honjo, Takuya Abe, 2008, IEICE Trans. Electron..

Novel frequency tunable CRLH-TL for reconfigurable wireless systems

Naoya Watanabe, Ryo Ishikawa, Kazuhiko Honjo, 2014, 2014 International Conference on Electromagnetics in Advanced Applications (ICEAA).

Wide-band high-efficiency GaN HEMT amplifier based on dual-band multi-harmonic treatments

Yuki Takagi, Ryo Ishikawa, Kazuhiko Honjo, 2017, 2017 47th European Microwave Conference (EuMC).

Efficient supply power control by PWM technique for microwave wireless power transfer systems

Ryo Ishikawa, Kazuhiko Honjo, 2014, 2014 Asia-Pacific Microwave Conference.

Miniature Design Technique of Stabilized C-Band p-HEMT MMIC Doherty Power Amplifier with Lumped Element Load Modulator

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2016, IEICE Trans. Electron..

A study on risk evaluation of countermeasure technique for preventing electromagnetic information leakage from ITE

Yasunao Suzuki, Ryo Ishikawa, Kimihiro Tajima, 2017, 2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE.

Evaluation of Information Leakage from PC Displays Using Spectrum Analyzers

Kaori Fukunaga, Ryo Ishikawa, Yukio Yamanaka, 2007, IEICE Trans. Commun..

18GHz-/28GHz-Band Gain-Boosted Feedback Power Amplifiers Using Affordable GaN HEMT MMIC Process

Ryo Ishikawa, Kazuhiko Honjo, Tsukasa Yasui, 2018, 2018 Asia-Pacific Microwave Conference (APMC).

A Miniature Broadband Doherty Power Amplifier With a Series-Connected Load

Shintaro Watanabe, Ryo Ishikawa, Kazuhiko Honjo, 2015, IEEE Transactions on Microwave Theory and Techniques.

Miniature differential-mode dual-band antenna module embedded with broadband balun

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2011, Asia-Pacific Microwave Conference 2011.

Multi-band reconfigurable antennas embedded with lumped-element passive components and varactors

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2013, 2013 Asia-Pacific Microwave Conference Proceedings (APMC).

C-2-26 Analysis of Group Delay Characteristics for an HBT Distributed Amplifier

Ryo Ishikawa, Kazuhiko Honjo, Masao Shimada, 2009 .

Novel Design of Dual-Band Reconfigurable Dipole Antenna Using Lumped and Distributed Elements

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2016, IEICE Trans. Commun..

Class-F GaN HEMT Amplifiers Using Compact CRLH Harmonic Tuning Stubs Designed Based on Negative Order Resonance Modes

Ryo Ishikawa, Shinichi Tanaka, Sota Koizumi, 2019, IEICE Trans. Electron..

Experimental Design Method for High-Efficiency Microwave Power Amplifiers Based on a Low-Frequency Active Harmonic Load-Pull Technique

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2016, IEICE Trans. Electron..

High-efficiency DC-to-RF/RF-to-DC interconversion switching module at C-band

Ryo Ishikawa, Kazuhiko Honjo, 2015, 2015 European Microwave Conference (EuMC).

Parallel combination of high-efficiency amplifiers with spurious rejection for concurrent multiband operation

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2016, 2016 46th European Microwave Conference (EuMC).

A High-Efficiency Low-Distortion Cascode Power Amplifier Consisting of Independently Biased InGaP/GaAs HBTs

Yuki Takagi, Ryo Ishikawa, Kazuhiko Honjo, 2014, IEICE Trans. Electron..

Distortion Compensation for Thermal Memory Effect on InGaP/GaAs HBT Amplifier by Inserting RC-Ladder Circuit in Base Bias Circuit

Yukio Takahashi, Ryo Ishikawa, Kazuhiko Honjo, 2010, IEICE Trans. Electron..

Speech recognition technology combined with three-dimensional lip movement

Kazumi Komiya, Ryo Ishikawa, Keiko Momose, 2001, IS&T/SPIE Electronic Imaging.

Digital Spatial Modulation Using Dual Scatterers Embedded with Switches for Wireless Power Transmission Applications

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2015, IEICE Trans. Electron..

Spatial modulation using array factor control for smart grid wireless power transmission

Ryo Ishikawa, Kazuhiko Honjo, Akira Saitou, 2011, Asia-Pacific Microwave Conference 2011.

Mutual Relationships between Effects of Driver Drowsiness on Physiological Indices, Driving Performances, and Subjective Evaluations

Makoto Itoh, Toshiyuki Inagaki, Ryo Ishikawa, 2012 .

Impulse UWB T/R MMIC modules for baseband digital signals

Ryo Ishikawa, Kazuhiko Honjo, 2010, The 40th European Microwave Conference.

Comparison of Power Gain Performance between Conventional and Independently Biased HBT Cascode Chips

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2014 .

GaN HEMT DC $I$ – $V$ Device Model for Accurate RF Rectifier Simulation

Ryo Ishikawa, Kazuhiko Honjo, Tsukasa Yasui, 2017, IEEE Microwave and Wireless Components Letters.

83nJ/bit Transmitter Using Code-Modulated Synchronized-OOK on 65nm SOTB for Normally-Off Wireless Sensor Networks

Koichiro Ishibashi, Ryo Ishikawa, Van-Trung Nguyen, 2018, IEICE Trans. Electron..

Doherty Amplifier Design Based on Asymmetric Configuration Scheme

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2021, IEICE Transactions on Electronics.

A 3.9-GHz-Band Outphasing Power Amplifier with Compact Combiner Based on Dual-Power-Level Design for Wide-Dynamic-Range Operation

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2020, 2020 IEEE/MTT-S International Microwave Symposium (IMS).

Thin film growth of a topological crystal insulator SnTe on the CdTe (111) surface by molecular beam epitaxy

Ryo Ishikawa, Shinji Kuroda, Tomonari Yamaguchi, 2016 .

Pressure Dependence of Fiber Bragg Grating Inscribed in Perfluorinated Polymer Fiber

Kyriacos Kalli, Yosuke Mizuno, Ryo Ishikawa, 2017, IEEE Photonics Technology Letters.

A 2.1/2.6 GHz dual-band high-efficiency GaN HEMT amplifier with harmonic reactive terminations

Ryo Ishikawa, Kazuhiko Honjo, Jun Enomoto, 2014, 2014 44th European Microwave Conference.

Low Noise Group Delay Equalization Technique for UWB InGaP/GaAs HBT LNA

Ryo Ishikawa, Kazuhiko Honjo, Kyoung-Pyo Ahn, 2010, IEEE Microwave and Wireless Components Letters.

4.5-/4.9-GHz-band tunable high-efficiency GaN HEMT power amplifier

Ryo Ishikawa, Kazuhiko Honjo, Kazuki Mashimo, 2017, 2017 47th European Microwave Conference (EuMC).

Microwave power transfer evaluation at 2.45 GHz using a high-efficiency GaAs HEMT amplifier and rectifier

Ryo Ishikawa, Kazuhiko Honjo, 2013, 2013 European Microwave Conference.

Second Harmonic Treatment Technique for Bandwidth Enhancement of GaN HEMT Amplifier With Harmonic Reactive Terminations

Ryo Ishikawa, Kazuhiko Honjo, Jun Enomoto, 2017, IEEE Transactions on Microwave Theory and Techniques.

Power gain performance enhancement of independently biased heterojunction bipolar transistor cascode chip

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2015 .

A GaN HEMT Doherty amplifier with a series connected load

Ryo Ishikawa, Kazuhiko Honjo, Yoichiro Takayama, 2009, 2009 Asia Pacific Microwave Conference.

Potential of Discriminative Sensing of Strain and Temperature Using Perfluorinated Polymer FBG

Kyriacos Kalli, Yosuke Mizuno, Ryo Ishikawa, 2019, IEEE Sensors Journal.

Doppler frequency up conversion of electromagnetic waves in a slotline on an optically excited silicon substrate

Ryo Ishikawa, Jongsuck Bae, Yuan Jun Xian, 2009 .

A 5.8-GHz reconfigurable power divider for wireless power transfer

Ryo Ishikawa, Kazuhiko Honjo, Yusuke Ohta, 2014, 2014 Asia-Pacific Microwave Conference.