A Small Dual-Band Asymmetric Dipole Antenna for 13.56 MHz Power and 2.45 GHz Data Transmission

Tanabe, Yasuko; Chang, Tammy; Yeh, Alexander; Poon, Ada S. Y.

doi:10.1109/lawp.2014.2330496

Cited by 16 publications

(10 citation statements)

References 17 publications

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“…A multi-transmitter multi-receiver system configuration was also developed in Reference [16]. The study of power transmission, while accompanied by data transmission, was implemented based on wearable devices [17,18]. All of these fundamental works show the variety of possible solutions for multiple-receiver applications.…”

Section: Of 18mentioning

confidence: 99%

Optimal Efficiency Tracking Control Scheme Based on Power Stabilization for a Wireless Power Transfer System with Multiple Receivers

Song

et al. 2018

Energies

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With the increase of charging requirements in electrical equipment, the wireless power transfer (WPT) system with multiple receivers has gained more attention as the charging power and efficiency of a WPT system depends on the equivalent reflected impedance of the load. Based on the circuit model analysis of a single receiver WPT system, this paper investigated the multiple-receiver WPT system. The relationship between the mutual inductance, load, and system efficiency was discussed and the optimal load, the equivalent reflected impedance, and power division method were analyzed to design the proposed system control scheme. With the use of the perturbation and observation (P&O) algorithm control method, the current of transfer and receivers were regulated to achieve stable constant power charging. Furthermore, when searching the minimum input power of the system, the optimal efficiency under a fixed power division ratio was also received. The validity of the proposed system control method was confirmed by simulation and experimental results. Under the proposed control method, an efficiency above 80% can be achieved for a multiple-receiver WPT system with a fixed power division ratio working at 6.78 MHz.

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Section: Of 18mentioning

confidence: 99%

Optimal Efficiency Tracking Control Scheme Based on Power Stabilization for a Wireless Power Transfer System with Multiple Receivers

Song

et al. 2018

Energies

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“…A variety of studies have been performed to improve the NFC module and NFC antenna. Many studies [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ] focus on optimization of NFC antenna design for enhancing the performance and operating distance of the NFC antenna, as well as for impedance adjustment issues.…”

Section: Nfc Technology Essentialsmentioning

confidence: 99%

The Survey on Near Field Communication

Çoşkun

Özdenizci

2015

Sensors

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Near Field Communication (NFC) is an emerging short-range wireless communication technology that offers great and varied promise in services such as payment, ticketing, gaming, crowd sourcing, voting, navigation, and many others. NFC technology enables the integration of services from a wide range of applications into one single smartphone. NFC technology has emerged recently, and consequently not much academic data are available yet, although the number of academic research studies carried out in the past two years has already surpassed the total number of the prior works combined. This paper presents the concept of NFC technology in a holistic approach from different perspectives, including hardware improvement and optimization, communication essentials and standards, applications, secure elements, privacy and security, usability analysis, and ecosystem and business issues. Further research opportunities in terms of the academic and business points of view are also explored and discussed at the end of each section. This comprehensive survey will be a valuable guide for researchers and academicians, as well as for business in the NFC technology and ecosystem.

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“…Sistemas de comunicação de campo próximo (NFC -Near-Field Communication) operam na faixa de frequência de 13,56 MHz e possuem taxa de transmissão de dados de 106 a 424 kbit/s, de acordo com a ISO15693 [1]. Além de possuir uma relação complementar à tecnologia RFID (Radio-Frequency Identification), a tecnologia NFC é capaz de viabilizar a comunicação com dispositivos que usam redes sem fio Bluetooth e Wi-Fi [2] [3]. Entretanto, pode-se dizer que as principais características desses sistemas são os altos níveis de segurança e qualidade sem um processo de emparelhamento, devido a uma limitação da distância de no máximo 10 cm [4].…”

Section: Introductionunclassified

Antena "N" de alto desempenho para aplicações NFC

Filgueiras¹,

Sêda²,

Santos³

et al. 2019

Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Resumo-O trabalho apresenta o desenvolvimento de uma antena "N" para aplicações NFC em 13,56 MHz. O projeto da antena baseou-se em uma distribuição de campo magnético uniforme ao longo da estrutura, a fim de aumentar o acoplamento entre antena e tag do sistema NFC. Comparou-se a antena "N" com modelo comercial e resultados experimentais demonstraram desempenho superior. Apresenta-se resultados numéricos e experimentais com ótima concordância e melhora de 21,8 dB no acoplamento.

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A Small Dual-Band Asymmetric Dipole Antenna for 13.56 MHz Power and 2.45 GHz Data Transmission

Cited by 16 publications

References 17 publications

Optimal Efficiency Tracking Control Scheme Based on Power Stabilization for a Wireless Power Transfer System with Multiple Receivers

Optimal Efficiency Tracking Control Scheme Based on Power Stabilization for a Wireless Power Transfer System with Multiple Receivers

The Survey on Near Field Communication

Antena "N" de alto desempenho para aplicações NFC

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