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IEICE Trans

Naoki SAKAI

Highly Efficient High-Power Rectenna with the Diode on Antenna (DoA) Topology
Kenji ITOH Naoki SAKAI Keisuke NOGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2022/10/01
Vol. E105-C  No. 10  pp. 483-491
Type of Manuscript:  INVITED PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
wireless power transfer, rectenna, rectifier, diode, antenna, 
 Summary | Full Text:PDF
Far-End Reactor Matching to a Traveling Load Along an RF Power Transmission Line
Sonshu SAKIHARA Satoshi KITABAYASHI Naoki SAKAI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2018/02/01
Vol. E101-A  No. 2  pp. 396-401
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
wireless power transfer, impedance matching, variable reactor, standing waves, moving load, 
 Summary | Full Text:PDF
Power Dependent Impedance Measurement Exploiting an Oscilloscope and Möbius Transformation
Sonshu SAKIHARA Masaru TAKANA Naoki SAKAI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2017/10/01
Vol. E100-C  No. 10  pp. 918-923
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
nonlinear impedance measurement, Möbius transformation, oscilloscope, measurability, RF rectifier, 
 Summary | Full Text:PDF | (Errata[Uploaded on November 1,2017])
Internal Power Loss Formulas of Lumped-Element Matching Circuits for High-Efficiency Wireless Power Transfer
Kyohei YAMADA Naoki SAKAI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/10/01
Vol. E99-C  No. 10  pp. 1182-1189
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: 
Keyword: 
wireless power transfer, impedance matching, Q factor, internal loss, formulation, 
 Summary | Full Text:PDF