Presentation 2015-07-03
[Invited Talk] Photovoltaic-Assisted CMOS Rectifier for Highly Efficient Energy Harvesting from Radio Waves
Koji Kotani,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) As one example realization of the synergistic energy harvesting concept, photovoltaic (PV)-assisted CMOS rectifier technology is demonstrated. An on-chip pn junction diode acting as a PV cell converts light energy to a dc bias voltage, which compensates the threshold voltage of the MOSFETs and enhances the RF to DC power conversion efficiency (PCE) of the rectifier especially under low input power conditions. Based on the physics-based analyses of the PV cell operation, symmetric PV cell structures for balanced biasing and non-silicide PV cell structures to further increase the bias voltages are proposed and improved efficiencies of the rectifiers are experimentally verified.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Energy Harvesting / Rectifier / Radio Waves / Photovoltaic
Paper # ICD2015-24
Date of Issue 2015-06-25 (ICD)

Conference Information
Committee ICD / ITE-IST
Conference Date 2015/7/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) National Defense Academy
Topics (in Japanese) (See Japanese page)
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface Circuitry
Chair Minoru Fujishima(Hiroshima Univ.) / Shigetoshi Sugawa(Tohoku Univ.)
Vice Chair Hideto Hidaka(Renesas)
Secretary Hideto Hidaka(Hiroshima Univ.) / (Hokkaido Univ.)
Assistant Makoto Takamiya(Univ. of Tokyo) / Hiroe Iwasaki(NTT) / Takashi Hashimoto(Panasonic) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Integrated Circuits and Devices / Technical Group on Information Sensing Technologies
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] Photovoltaic-Assisted CMOS Rectifier for Highly Efficient Energy Harvesting from Radio Waves
Sub Title (in English)
Keyword(1) Energy Harvesting
Keyword(2) Rectifier
Keyword(3) Radio Waves
Keyword(4) Photovoltaic
1st Author's Name Koji Kotani
1st Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2015-07-03
Paper # ICD2015-24
Volume (vol) vol.115
Number (no) ICD-124
Page pp.pp.59-64(ICD),
#Pages 6
Date of Issue 2015-06-25 (ICD)