Analysis and study of the duty ratio effects on the class-E_M power amplifier including MOSFET nonlinear gate-to-drain and drain-to-source capacitances Mohsen Hayati, Hamed Abbasi, Marian K. Kazimierczuk, and Hiroo Sekiya IEEE Transactions on Power Electronics, vol.33, no.12, pp.10500-10562, Dec. 2018. [Abstract | pdf] Subnominal operation of class-E nonlinear shunt capacitance power amplifier at any duty ratio and grading coefficient Ali Lotfi, Ali Medi, Akihiko Katsuki, Fujio Kurokawa, Hiroo Sekiya, Marian K. Kazimierczuk, and Tadashi Suetsugu IEEE Transactions on Industrial Electronics, vol.65, no.10, Oct. 2018. [Abstract | pdf]  (in Japanese) , vol.J101-A, no.10, pp.250-259, Oct. 2018. [Abstract | pdf] High-frequency resonant gate driever with isolated class-E amplifier Ryoko Sugano, Yuchong Sun, and Hiroo Sekiya Nonlinear Theory and Its Applications, IEICE, vol.9, no.3, pp.358-373, July 2018. [Abstract | pdf] Throughput and delay analysis of IEEE 802.11 string-topology multi-hop network in TCP traffic with delayed ACK Kosuke Sanada, Hiroo Sekiya, and Kazuo Mori IEICE Transactions on Communications, vol.E101-B, no.5, pp.1233-1245, May 2018. [Abstract | pdf] Design of class E power amplifier with new structure and flat top switch voltage waveform Mohsen Hayati, Sobhan Roshani, Saeed Roshani, Marian K. Kazimierczuk, and Hiroo Sekiya IEEE Transactions on Power Electronics, vol.33, no.3, pp.2571-2579, Mar. 2018. [Abstract | pdf] Generalized analytical expressions for end-to-end throughput of IEEE 802.11 string-topology multi-hop networks Kosuke Sanada, Nobuyoshi Komuro, Zhetao Li, Tingrui Pei, Young-June Choi, and Hiroo Sekiya Ad Hoc Networks, vol.7, no.1, pp.135-148, Mar. 2018. [Abstract | pdf] Outside nominal operation analysis and design considerations of Inverse-class-E power amplifier Ali Lotfi, Ali Ershadi, Ali Medi, Mohsen Hayati, Marian K. Kazimierczuk, Hiroo Sekiya, Akihiko Katsuki, and Fujio Kurokawa IEEE Journal of Emerging and Selected Topics in Power Electronics, vol.6, no.1, pp.165-174, 2018. [Abstract | pdf]

Experimental evaluations of thinned-out and PDM controlled class-D rectifier Shengzhe Xu, Akane Iwasaki, and Hiroo Sekiya 2018 International Conference on Smart Grids (ICSG 2018), pp.76-81, Dec. 2018. [Abstract | pdf] Analysis and design of phase-controlled class-D ZVS inverter Tatsuki Ohsato, Yuta Yamada, Xiuqin Wei, and Hiroo Sekiya 2018 International SoC Design Conference (ISOCC2018), pp.160-161, Nov. 2018. [Abstract | pdf] XOR learning by spiking neural network with infrared communications Kazuki Matsumoto, Hiroyuki Torikai, and Hiroo Sekiya 2018 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference(APSIPA ASC2018), pp.1289-1292, Nov. 2018. [Abstract | pdf] Pre- and post-regulation control of high-frequency magnetic-resonance wireless power transfer system with class-D rectifier Yoshiro Hara, Tatsuki Ohsato, and Hiroo Sekiya 2018 IEEE International Communications Energy Conference (INTELEC2018), pp.1-6, Oct. 2018. [Abstract | pdf] The phase-controlled class-D ZVS inverter with clamp diodes Yusuke Ishihara, Shohei Mita, and Hiroo Sekiya 2018 IEEE Energy Conversion Congress and Exposition (ECCE2018), pp.6745-6750, Sept. 2018. [Abstract | pdf] High-frequency soft-switching resonant driver for SiC class-D amplifier Ryoko Sugano, Xiuqin Wei, and Hiroo Sekiya 2018 International Symposium on Nonlinear Theory and Its Application (NOLTA2018), Sept. 2018. [Abstract | pdf] Analysis of class-D ZVS inverter with asymmetrical duty-cycle control for wireless power transfer applications Shohei Mita, Hiroo Sekiya 2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018. [Abstract | pdf] Analysis and design of wireless power transfer system with asymmetrical duty-cycle controlled class-D ZVS inverter Shohei Mita, Hiroo Sekiya 2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018. [Abstract | pdf] A novel analysis procedure for class E oscillator Fumiya Ebihara, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu 2018 IEEE International Symposium on Circuits and Systems (ISCAS2018), pp.1-5, May 2018. [Abstract | pdf] Design of phase-controlled class-D ZVS inverter for output power regulation Yudai Nagata, Hiroo Sekiya 2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018. [Abstract | pdf] Analysis procedure of further miniaturized class-E2 DC/DC converter Yuusuke Ogi, Xiuqin Wei, Hiroo Sekiya, and Tadashi Suetsugu 2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018. [Abstract | pdf] Throughput and delay analyses for RTS/CTS-used IEEE 802.11 DCF on two-way flows string-topology multi-hop networks Kouhei Hayashida, Hiroo Sekiya 2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018. [Abstract | pdf] Reinforcement Learning for FPGA Spiking Neural Network coupled by LEDs Shohei Sugino, Kazuki Matsumoto, Hiroyuki Torikai, and Hiroo Sekiya 2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018. [Abstract | pdf] Throughput analysis of WLANs in presence of capture effect Yuto Yoshida, Hiroo Sekiya 2018 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'18), Mar. 2018. [Abstract | pdf]

Wi-Fi virtualization: applications and performance evaluation Kien Nguyen, and Hiroo Sekiya Vietnam-Japan Joint Workshop on Ambient Intelligence and Sensor Networks (IEICE ASN), Nov. 2018. [Abstract | pdf] XOR learning by spiking neural network with infrared communications (in Japanese) Kazuki Matsumoto, Hiroyuki Torikai, and Hiroo Sekiya Technical Committee on Complex Communication Sciences (CCS), vol.118, no.168, pp.25-28, Aug. 2018. [Abstract | pdf] Maximum efficiency tracking of high frequency magnetic resonance wireless power transfer system with class-D rectifier (in Japanese) Yoshiro Hara, Tatsuki Ohsato, and Hiroo Sekiya Technical Committee on Semiconductor Power Converter, July 2018. [Abstract | pdf] Design of high-frequency soft-switching resonant driver for SiC Class-D inverter (in Japanese) Ryoko Sugano, Xiuqin Wei, and Hiroo Sekiya Technical Committee on Semiconductor Power Converter, July 2018. [Abstract | pdf] Analysis of out of phase controlled class D inverter with MOSFET at antiparallel diode (in Japanese) Tatsuki Ohsato, Xiuqin Wei, and Hiroo Sekiya Technical Committee on Semiconductor Power Converter, July 2018. [Abstract | pdf] Throughput analysis of WLANs taking into account capture effect (in Japanese) Takeshi Kanematsu, Yuto Yoshida, and Hiroo Sekiya Technical Committee on Ambient intelligence and Sensor Networks (ASN), vol.118, no.127, pp.7-12, July 2018. [Abstract | pdf] Design and control of phase-controlled Class-D ZVS inverter with the voltage clamp function (in Japanese) Yusuke Ishihara, Hiroo Sekiya Technical Committee on Energy Engineering in Electronics and Communications, vol.117, no.424, pp.41-46, Jan. 2018. [Abstract | pdf] Analysis of wireless power transfer system with asymmetrical duty-cycle controlled class-D ZVS inverter (in Japanese) Shohei Mita, Hiroo Sekiya Technical Committee on Energy Engineering in Electronics and Communications, vol.117, no.424, pp.47-52, Jan. 2018. [Abstract | pdf] Saturated throughput analysis of IEEE 802.11p EDCA expressing transmission probability strictly (in Japanese) Shintaro Ikuma, Hiroo Sekiya Technical Committee on Ambient intelligence and Sensor Networks (ASN), vol.117, no.426, pp.157-162, Jan. 2018. [Abstract | pdf]