Presentation 2008-12-04
The resonance design including the diode in the power supply circuit of a UHF passive RFID tag
Kota Nakamura, Yohtaro Umeda, Osamu Takyu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, about the power supply circuit of a UHF passive RFID tag, the composition which inserted the resonant circuit between the antenna and the rectification circuit is used, while a circuit simulation estimates the influence of the power supply circuit output characteristic on the diode nonlinear capacity for rectification, the optimal design technique of the circuit containing nonlinear capacity is proposed. As the result of a simulation, when nonlinear capacity is included, the optimal design of a resonant circuit should change to IC load resistance given when input electric power changed, and when the optimal design of the resonant circuit was carried out, it turned out that IC load resistance from which electric power efficiency serves as the maximum changes. Moreover, the simple design of the resonant circuit by the linear model using the OFF state time average value of diode nonlinear capacity showed that the optimal resonant circuit design was possible in approximation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Passive RFID / Rectifier circuit / Resonant circuit / Impedance matching
Paper # SIS2008-46
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Committee SIS
Conference Date 2008/11/27(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The resonance design including the diode in the power supply circuit of a UHF passive RFID tag
Sub Title (in English)
Keyword(1) Passive RFID
Keyword(2) Rectifier circuit
Keyword(3) Resonant circuit
Keyword(4) Impedance matching
1st Author's Name Kota Nakamura
1st Author's Affiliation Graduate School of Science and Technology, Tokyo University of Science()
2nd Author's Name Yohtaro Umeda
2nd Author's Affiliation Graduate School of Science and Technology, Tokyo University of Science
3rd Author's Name Osamu Takyu
3rd Author's Affiliation Graduate School of Science and Technology, Tokyo University of Science
Date 2008-12-04
Paper # SIS2008-46
Volume (vol) vol.108
Number (no) 334
Page pp.pp.-
#Pages 6
Date of Issue