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An 18.9-dB Dynamic-Range Rectifier Based on Time-Domain Modeling and Quality Factor

Au, Ngoc Duc LU and Seo, Chulhun (2019) In IEEE Microwave and Wireless Components Letters 29(9). p.623-625
Abstract
This letter presents a design of 433-MHz rectifier for wireless power transmission (WPT) in medical implant devices (MIDs). By modeling microwave Schottky diode in the time domain, the dc voltage and the optimal input impedance can be obtained at the high input power range when the current waveform at each input power was determined and implemented. At the input terminal, a pair of shunt capacitors were connected with the series and shunt inductors to improve the quality (Q) factor of matching network, which enhanced the rectifier efficiency in the wide input power range. By using lump elements in matching network, the 1.1 cm × 0.4 cm compact-size rectifier had the measured efficiency above 50.1% where the input power from -6.8 dBm (0.209... (More)
This letter presents a design of 433-MHz rectifier for wireless power transmission (WPT) in medical implant devices (MIDs). By modeling microwave Schottky diode in the time domain, the dc voltage and the optimal input impedance can be obtained at the high input power range when the current waveform at each input power was determined and implemented. At the input terminal, a pair of shunt capacitors were connected with the series and shunt inductors to improve the quality (Q) factor of matching network, which enhanced the rectifier efficiency in the wide input power range. By using lump elements in matching network, the 1.1 cm × 0.4 cm compact-size rectifier had the measured efficiency above 50.1% where the input power from -6.8 dBm (0.209 mW) to 12.1 dBm (16.22 mW) and thus, the dynamic range of 18.9 dB achieved. The peak efficiency was 64.4% at 5 dBm (3.16 mW). (Less)
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author
and
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Microwave and Wireless Components Letters
volume
29
issue
9
pages
623 - 625
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85072029143
ISSN
1531-1309
DOI
10.1109/LMWC.2019.2932448
language
English
LU publication?
no
id
349d5ebf-3ba5-488b-826f-b9c33ac830c9
date added to LUP
2023-09-14 10:35:58
date last changed
2023-09-15 10:38:55
@article{349d5ebf-3ba5-488b-826f-b9c33ac830c9,
  abstract     = {{This letter presents a design of 433-MHz rectifier for wireless power transmission (WPT) in medical implant devices (MIDs). By modeling microwave Schottky diode in the time domain, the dc voltage and the optimal input impedance can be obtained at the high input power range when the current waveform at each input power was determined and implemented. At the input terminal, a pair of shunt capacitors were connected with the series and shunt inductors to improve the quality (Q) factor of matching network, which enhanced the rectifier efficiency in the wide input power range. By using lump elements in matching network, the 1.1 cm × 0.4 cm compact-size rectifier had the measured efficiency above 50.1% where the input power from -6.8 dBm (0.209 mW) to 12.1 dBm (16.22 mW) and thus, the dynamic range of 18.9 dB achieved. The peak efficiency was 64.4% at 5 dBm (3.16 mW).}},
  author       = {{Au, Ngoc Duc and Seo, Chulhun}},
  issn         = {{1531-1309}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{9}},
  pages        = {{623--625}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Microwave and Wireless Components Letters}},
  title        = {{An 18.9-dB Dynamic-Range Rectifier Based on Time-Domain Modeling and Quality Factor}},
  url          = {{http://dx.doi.org/10.1109/LMWC.2019.2932448}},
  doi          = {{10.1109/LMWC.2019.2932448}},
  volume       = {{29}},
  year         = {{2019}},
}