Hirofumi SASAKI


Orbital Angular Momentum (OAM) Multiplexing: An Enabler of a New Era of Wireless Communications
Doohwan LEE Hirofumi SASAKI Hiroyuki FUKUMOTO Ken HIRAGA Tadao NAKAGAWA 
Publication:   
Publication Date: 2017/07/01
Vol. E100-B  No. 7  pp. 1044-1063
Type of Manuscript:  INVITED PAPER (Special Section on Smart Radio and Its Applications in Conjunction with Main Topics of SmartCom)
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
orbital angular momentum multiplexinguniform circular arrayGaussian beamBessel beamlens antenna
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Design of a Multiple-Input SC DC-DC Converter Realizing Long Battery Runtime
Kei EGUCHI Sawai PONGSWATD Amphawan JULSEREEWONG Kitti TIRASESTH Hirofumi SASAKI Takahiro INOUE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Vol. E93-A  No. 5  pp. 985-988
Type of Manuscript:  LETTER
Category: Circuit Theory
Keyword: 
DC-DC convertersswitched-capacitor circuitsback-lighting applicationsclean energy
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All Digital Dividing Ratio Changeable PLL Using Delay Clock Pulse with Low Jitter
Mitsutoshi YAHARA Kuniaki FUJIMOTO Hirofumi SASAKI Takashi SHIBUYA Yoshinori HIGASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1527-1532
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
Category: 
Keyword: 
PLLjitterdelay clocklock-in rangedigital
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A Voltage Controlled Oscillator with Up Mode Type Miller-Integrator
Mitsutoshi YAHARA Kuniaki FUJIMOTO Hirofumi SASAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/12/01
Vol. E88-C  No. 12  pp. 2385-2387
Type of Manuscript:  LETTER
Category: Electronic Circuits
Keyword: 
Miller-integratorNOR gateastable multivibratorvoltage controlled oscillator
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A Voltage Controlled Astable Multivibrator with Miller-Integrator
Hirofumi SASAKI Kuniaki FUJIMOTO Mitsutoshi YAHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/02/25
Vol. E78-A  No. 2  pp. 196-198
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit Techniques and Computer Aided Design)
Category: 
Keyword: 
miller integratorastable multivibratorvoltage controlled oscillator
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