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KMID : 1144120220120030295
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Biomedical Engineering Letters
2022 Volume.12 No. 3 p.295 ~ p.302
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Full-duplex enabled wireless power transfer system via textile for miniaturized IMD
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Lee Jae-Ho
Bae Beom-Jun
Kim Beom-Jin
Lee Byung-Hun
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Abstract
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Full-duplex (FD) enabled wireless power transfer (WPT) system via textile for miniaturized IMD is presented. By utilizing the battery-free near-field communication (NFC) method, the system realizes wireless power and data transmission without a bulky battery or energy harvester which can diminish the physical size of implantable medical device (IMD). Moreover, using textile as a medium of power transmission, the system overcomes the drawback and extends the limited effective range of the NFC method. In addition, as realizing simultaneous bidirectional data transmission over a single data channel, IMD has been further miniaturized. The proposed system including an external transmitter and the minimized IMD receiver supports 200 kbps and 50 kbps data rates for FSK downlink and LSK uplink telemetries at the same time with bit error rate (BER) of?< 8 x 10-5 and?
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KEYWORD
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Full duplex, Wireless power transfer, Conductive thread, Textile coil, Data telemetry, Implantable medical device, Dual-band, Near-field-communication method, Radio frequency technology
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