An 18.9-dB Dynamic-Range Rectifier Based on Time-Domain Modeling and Quality Factor
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/349d5ebf-3ba5-488b-826f-b9c33ac830c9
- author
- Au, Ngoc Duc LU and Seo, Chulhun
- publishing date
- 2019-08-13
- 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}}, }