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Numerical analysis of wireless power transfer in near-field UHF-RFID systems

Part of: Wirelessly Powering: The Future

Published online by Cambridge University Press:  27 November 2017

Alice Buffi Open the ORCID record for Alice Buffi [Opens in a new window] ,
Andrea Michel ,
Paolo Nepa  and
Giuliano Manara
Alice Buffi*
Affiliation:
Department of Information Engineering, University of Pisa, Via G. Caruso 16, IT-56122 Pisa, Italy. Phone: +39 050 2217 576
Andrea Michel
Affiliation:
Department of Information Engineering, University of Pisa, Via G. Caruso 16, IT-56122 Pisa, Italy. Phone: +39 050 2217 576
Paolo Nepa
Affiliation:
Department of Information Engineering, University of Pisa, Via G. Caruso 16, IT-56122 Pisa, Italy. Phone: +39 050 2217 576
Giuliano Manara
Affiliation:
Department of Information Engineering, University of Pisa, Via G. Caruso 16, IT-56122 Pisa, Italy. Phone: +39 050 2217 576
*
Corresponding author: A. Buffi Email: alice.buffi@iet.unipi.it
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Abstract

A preliminary numerical analysis of the power transfer efficiency (PTE) for the forward link of near-field (NF) ultra high frequency (UHF)-radio frequency identification (RFID) systems is addressed in this paper, by resorting to an impedance matrix approach where the matrix entries are determined through full-wave simulations. The paper is aimed to quantify the NF-coupling effects on the PTE, as a function of the distance between the reader and tag antennas. To allow for a PTE comparison between different reader and tag antenna pairs, a benchmarking tag-loading condition has been assumed, where the tag antenna is loaded with the impedance that maximizes the PTE. In a more realistic loading condition, the load impedance is assumed as equal to the conjugate of the tag antenna input impedance. Full-wave simulations use accurate antenna models of commercial UHF-RFID passive tags and reader antennas. Finally, a “shape-matched antenna” configuration has been selected, where the reader antenna is assumed as identical to the tag antenna. It is shown that the above configuration could be a valuable compact solution, at least for those systems where the relative orientation/position between the tag and reader antennas can be controlled, and their separation is of the order of a few centimeters or less.

Keywords

UHF-RFID systemsUHF-RFID near-field couplingRFID power transfer efficiencyRFID wireless power transfer
Type
Wirelessly Powering: The Future
Information
Wireless Power Transfer , Volume 5 , Issue 1 , March 2018 , pp. 42 - 53
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Copyright
Copyright © Cambridge University Press 2017 

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References

REFERENCES

[1] Tucker, C.A.; Muehlmann, U.; Gebhart, M.: Contactless power transmission for NFC antennas in credit-card size format. IET Circuits Devices Syst., 11 (1) (2017), 95–101.Google Scholar
[2] Gowda, V.R.; Yurduseven, O.; Lipworth, G.; Zupan, T.; Reynolds, M.S.; Smith, D.R.: Wireless power transfer in the radiative near field. IEEE Antennas Wireless Propag. Lett., 15 (2016), 1865–1868.Google Scholar
[3] Del Prete, M.; Berra, F.; Costanzo, A.; Masotti, D.: Seamless exploitation of cell-phone antennas for near-field WPT by a frequency-diplexing approach. IET Microw. Antennas Propag., 11 (5) (2017), 649–656.Google Scholar
[4] Moradi, E. et al. : Miniature implantable and wearable on-body antennas: towards the new era of wireless body-centric systems. IEEE Antennas Propag. Mag. [antenna applications corner], 56 (1) (2014), 271–291.Google Scholar
[5] Trevisan, R.; Costanzo, A.: A UHF near-field link for passive sensing in industrial wireless power transfer systems. IEEE Trans. Microw. Theory Tech., 64 (5) (2016), 1634–1643.Google Scholar
[6] Chen, Y.-S.; Chen, S.-Y.; Li, H.-J.: Analysis of antenna coupling in near-field communication systems. IEEE Trans. Antennas Propag., 58 (10) (2010), 3327–3335.Google Scholar
[7] Fotopoulou, K.; Flynn, B.W.: Optimum antenna coil structure for inductive powering of passive RFID tags, in Proc. of IEEE Int. Conf. on RFID, March 2007, 71–77.Google Scholar
[8] Nikitin, P.V.; Rao, K.V.S.; Lazar, S.: An overview of near field UHF RFID, in Proc. IEEE Int. Conf. on RFID, March 2007, 167–174.Google Scholar
[9] Fuschini, F.; Piersanti, C.; Sydanheimo, L.; Ukkonen, L.; Falciasecca, G.: Electromagnetic analyses of near field UHF RFID systems. IEEE Trans. Antennas Propag., 58 (5) (2010), 1759–1769.CrossRefGoogle Scholar
[10] Buffi, A.; Michel, A.; Caso, R.; Nepa, P.: Near-field coupling in UHF-RFID systems, in 2013 Int. Symp. on Electromagnetic Theory, Hiroshima, 2013, 408–411.Google Scholar
[11] Cho, C.; Lee, C.; Ryoo, J.; Choo, H.: Planar near-field RFID reader antenna for item-level tagging. IEEE Antennas Wirel. Propag. Lett., 10 (2011), 1100–1103.Google Scholar
[12] Nikitin, P.V.; Rao, K.V.S.: Antennas and propagation in UHF RFID Systems, in 2008 IEEE Int. Conf. on RFID, Las Vegas, NV, 2008, 277–288.Google Scholar
[13] Jaakkola, K.; Koivu, P.: Low-cost and low-profile near field UHF RFID transponder for tagging batteries and other metal objects. IEEE Trans. Antennas Propag., 63 (2) (2015), 692–702.Google Scholar
[14] Turalchuk, P.; Munina, I.; Derkach, M.; Vendik, O.; Vendik, I.: Electrically small loop antennas for RFID applications. IEEE Antennas Wirel. Propag. Lett., 14 (2015), 1786–1789.Google Scholar
[15] Michel, A.; Caso, R.; Buffi, A.; Nepa, P.; Isola, G.: Meandered TWAS array for near-field UHF RFID applications. Electron. Lett., 50 (1) (2014), 17–18.Google Scholar
[16] Michel, A.; Nepa, P.: UHF-RFID desktop reader antennas: performance analysis in the near-field region. IEEE Antennas Wireless Propag. Lett., 15 (2016), 1430–1433.Google Scholar
[17] Michel, A.; Rodriguez Pino, M.; Nepa, P.: Reconfigurable modular antenna for NF UHF RFID smart point readers. IEEE Trans. Antennas Propag., 65 (2) (2017), 498–506.CrossRefGoogle Scholar
[18]UH113 tag datasheet. [Online]. Available: http://www.lab-id.com/datasheet/inlay_UHF/UH113.pdf.Google Scholar
[19]UH100 tag datasheet. [Online]. Available: http://www.lab-id.com/datasheet/inlay_UHF/UH100.pdf.Google Scholar
[20] Liu, Z.-M.; Hillegas, R.R.: A 3-patch near field antenna for conveyor bottom read in RFID sortation application, in Proc. of 2006 IEEE Antennas and Propagation Symp., Albuquerque, NM, USA, 9–14 July 2006, 1043–1046.Google Scholar
[21] Medeiros, C.R.; Costa, J.R.; Fernandes, C.A.: RFID reader antennas for tag detection in self-confined volumes at UHF. IEEE Antennas Propag. Mag., 53 (2) (2011), 39–50.Google Scholar
[22] Tsirline, B.; Hohberger, C.; Gawelczyk, R.; Donato, D.: Spatially selective UHF near field microstrip coupler device and RFID systems using device, US patent application 20050045723, 2003.Google Scholar
[23] Michel, A.; Buffi, A.; Nepa, P.; Manara, G.: Antennas for UHF-RFID printer-encoders, in 2015 IEEE 15th Mediterranean Microwave Symp. (MMS), Lecce, 2015, 1–4.Google Scholar
[24] Catarinucci, L. et al. : , smart RFID antenna system for indoor tracking and behavior analysis of small animals in colony cages. IEEE Sens. J., 14 (4) (2014), 1198–1206.CrossRefGoogle Scholar
[25] Yates, D.C.; Holmes, A.S.; Burdett, A.J.: Optimal transmission frequency for ultralow-power short-range radio links. IEEE Trans. Circuits Syst., 51 (7, pt. I) (2004), 1405–1413.CrossRefGoogle Scholar
[26] Buffi, A.; Nepa, P.; Manara, G.: Analysis of near-field coupling in UHF-RFID systems, in 2011 IEEE-APS Topical Conf. on Antennas and Propagation in Wireless Communications (APWC), Torino, 2011, 931–934.Google Scholar
[27] Bird, T.S.; Rypkema, N.; Smart, K.W.: Antenna impedance matching for maximum power transfer in wireless sensor networks, in IEEE Sensors, 2009, 916–919.Google Scholar
[28] Kuester, D.G.; Novotny, D.R.; Guerrieri, J.R.: Forward and reverse link constraints in UHF RFID with passive tags, in 2010 IEEE Int. Symp. on Electromagnetic Compatibility, Fort Lauderdale, FL, 2010, 680–685.Google Scholar
[29] Balanis, C.A.: Antenna Theory: Analysis and Design, 2nd ed., John Wiley & Sons, New York, 1996.Google Scholar
[30] Stubenrauch, C.; Francis, M.: Comparison of measured and calculated mutual coupling in the near field between microwave antennas. IEEE Trans. Antennas Propag., 34 (7) (1986), 952–955.Google Scholar
[31] Marrocco, G.: The art of UHF RFID antenna design: impedance-matching and size-reduction techniques. IEEE Antennas Propag. Mag., 50 (1) (2008), 66–79.Google Scholar
[32]Impinj Monza-3 chip datasheet. [Online]. Available: http://www.impinj.com/Documents/Tag_Chips/Monza_3_Tag_Chip_Datasheet/.Google Scholar
[33] Lee, J.; Nam, S.: Fundamental aspects of near-field coupling small antennas for wireless power transfer. IEEE Trans. Antennas Propag., 58 (11) (2010), 3442–3449.Google Scholar