A wireless charging and near-field communication combination module for mobile applications

Shibuya, Hiroki; Tsukuda, Tatsuaki; Suzuki, Hiroyoshi; Shimizu, Tadashi; Dobashi, Masahiro; Nishizono, Shinji; Baba, Mikio; Sasaki, Hideki; Terajima, Katsushi

doi:10.1109/ectc.2014.6897371

Cited by 11 publications

(5 citation statements)

References 4 publications

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“…The NFC wireless charging feature can use the same architecture (antenna, EMI filter, matching circuit, and NFC chip) as the NFC communication feature in order to operate [2]. So, a designer can use both NFC features on the same product [3].…”

Section: Nfc Technology Overviewmentioning

confidence: 99%

Antenna System Design To Increase Power Transfer Efficiency with NFC Wireless Charging Technology

Quignon¹,

Tornambe²,

Deleruyelle³

et al. 2022

Adv. sci. technol. eng. syst. j.

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The NFC wireless charging feature is an extension of the NFC technology that can be implanted on wearables. The purpose of this paper is to show how to increase power transfer efficiency on both transmitter and receiver antenna systems. To demonstrate this problematic, firstly this paper gives an overview of how this NFC feature is implemented (architecture, power transfer, carrier frequency, communication bandwidth…), and can be complementary to Qi technology. Then, it provides a study on how to improve the power transfer efficiency on the antennas. To perform this result, the designer can adapt some antenna parameters as coupling coefficient, quality factor, matching method, and the antenna size. If these recommendations are respected, the power transfer efficiency between the antennas could reach between 70% and 80% with the NFC charging technology.

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Section: Nfc Technology Overviewmentioning

confidence: 99%

Antenna System Design To Increase Power Transfer Efficiency with NFC Wireless Charging Technology

Quignon¹,

Tornambe²,

Deleruyelle³

et al. 2022

Adv. sci. technol. eng. syst. j.

View full text Add to dashboard Cite

show abstract

“…We can solve the problem of electromagnetic interference with NFC by using the electric coupling method, such as CPT. As such, it is significant to design antennas, such as NFC and RFID, for communication or couplers for WPT in various ways according to the situation and purpose [ 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Resonance-Based Wireless Power Transfer Using Mixed Coupling

Park

Ahn

2020

Sensors

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This study presents an equivalent circuit model for the analysis of wireless power transfer (WPT) through both electric and magnetic couplings using merely a resonant coupler. Moreover, the frequency split phenomenon, which occurs when transmitting couplers are near receiving couplers, is explained. This phenomenon was analyzed using simple circuit models derived via a mode decomposition technique. To verify the proposed method, a resonant coupler using mixed coupling was designed and its efficiency was compared with the result obtained using a commercial electromagnetic solver. The results of this study are expected to aid in designing various WPT couplers or sensor antennas by selecting electric, magnetic, or mixed couplings. Furthermore, the results of this study are expected to be applied to technologies that sense objects, or simultaneously transmit and receive information and power wirelessly.

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“…This will replace the traditional and orthodox card-payment system by delightful, customer-oriented and timesaving card-less payment system with the help of N.F.C. [1]. The automation is thriving on the planet with its clinquant idiosyncrasy and has been excogitate over numerous different advances like barcodes, RFID etc.…”

Section: Introductionmentioning

confidence: 99%

Docket-Less Reckon in Metro’s Adapting N.F.C

Chugh¹

2018

IJRET

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A modernistic impermanent system empowers a trade of information within the scope of 10 cm amid devices; an intensification of RFID. It can accurately endeavor while the gadgets are not hopped up by battery. The system is intended for the metro rails which comforts the users in perusing the information by percussing the gadgets to the card readers system at source and will deduct the money after perusing it bis to the destination. The communication materializes in two states; with the mobile device i.e sender is in active state and the other node i.e the receiver is in passive state and second both the devices are in active state i.e in the live condition.

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A wireless charging and near-field communication combination module for mobile applications

Cited by 11 publications

References 4 publications

Antenna System Design To Increase Power Transfer Efficiency with NFC Wireless Charging Technology

Antenna System Design To Increase Power Transfer Efficiency with NFC Wireless Charging Technology

Novel Resonance-Based Wireless Power Transfer Using Mixed Coupling

Docket-Less Reckon in Metro’s Adapting N.F.C

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