The Roots, Rules, and Rise of RFID

Heidrich, Juergen; Brenk, Daniel; Eßel, Jochen; Schwarzer, Stefan; Seemann, K.; Fischer, Georg; Weigel, Robert

doi:10.1109/mmm.2010.936075

Cited by 45 publications

(10 citation statements)

References 21 publications

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“…Radiofrequency identification (RFID) is a method for identification and gathering information of objects, consisting of a reader (interrogator) and a tag (transponder) [127][128][129][130][131]. Ultrahigh frequency (UHF) passive tags, which are attached to the identifying objects, contain the antenna and an integrated circuit (where the information related to the object is stored), both supported by a plastic substrate (inlay).…”

Section: Applications Of Metamaterials Transmission Lines (Part Ii): Umentioning

confidence: 99%

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Martín

2012

ISRN Electronics

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This paper is focused on the application of concepts derived from metamaterials to the development of novel devices, circuits, and antennas of interest in wireless communications, radiofrequency identification (RFID), and sensors. Specifically, it is shown that artificial transmission lines based (or inspired) on metamaterials exhibit interesting properties, useful for the implementation of high-performance and compact devices as well as novel functional devices. Thanks to the presence of reactive loading elements in such artificial lines, the main line parameters, that is, the characteristic impedance and the phase constant, can be engineered. This has opened new paths for RF and microwave circuit and antenna design on the basis of impedance and dispersion engineering.

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Section: Applications Of Metamaterials Transmission Lines (Part Ii): Umentioning

confidence: 99%

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Martín

2012

ISRN Electronics

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“…The ultra high frequency (UHF) tags have garnered more attention as they offer longer read ranges, higher reading speeds, enable simultaneous detection of more number of tags and need smaller antennas than low frequency (LF) and high frequency (HF) systems [3]. Transfer of data between the tag and the reader is achieved by near-field coupling with load modulation in LF and HF bands, whereas, in UHF bands, the principle of backscatter modulation is used [4]. In backscatter modulation, the tag antenna receives the modulated signal transmitted by the reader.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Uhf Rfid Tag Antenna Using Two Eccentric Circular Rings

Barman¹,

Bhaskar²,

Singh³

2018

PIER M

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Abstract-A low profile dual-band passive Ultra High Frequency Radio Frequency Identification (UHF RFID) tag antenna designed to operate at two RFID bands allocated for use in and Japan (950-956 MHz) is proposed. The antenna has two eccentric circular rings of different radii to provide dual band response. An arc-shaped strip with Impinj Monza-4 IC chip is used to feed the two rings simultaneously by microstrip-line coupling-feed technique. The proposed design is simulated using Ansoft HFSS, and the prototype is fabricated. The return losses at 866 MHz and 952 MHz are measured to be −12.25 dB and −12.99 dB, respectively, which are in good agreement with the simulated results. The proposed antenna exhibits a 10 dB bandwidth of 9 MHz from 862 to 870 MHz and an 8 MHz 10 dB bandwidth from 949 to 956 MHz covering the UHF RFID bands in Europe and Japan. The maximum read ranges are measured to be around 3 m in the 865-868 MHz band and 2.6 m in the 950-956 MHz band.

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“…This leads to large ranging errors and biased distance estimates for narrowband radar signals, since an extraction of the LOS signal is rarely possible with low bandwidths. Ultra wideband (UWB) systems have the potential to overcome this problem and make accurate ranging in dense multipath environments feasible [12], [13], but have strict power emission limits and a considerably higher system complexity.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth dependence of CW ranging to UHF RFID tags in severe multipath environments

Arnitz

Ebelt

et al. 2011

2011 IEEE International Conference on RFID

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In this paper the impact of the signal bandwidth on the performance of frequency modulated continuous wave (FMCW) radar based ranging to ultra high frequency (UHF) radio frequency identification (RFID) tags is investigated. The analyses are based on ultra-wideband (UWB) channel measurements performed in a warehouse portal, which is a severe multipath environment. It is illustrated that the available bandwidth of the usual ISM bands at 900 MHz, 2.5 GHz and 5.8 GHz is only sufficient for a precise RFID tag localization if moderate or low multipath conditions are given. However, in severe multipath channels the ISM bands are unsuited and UWB signals are needed. The results can be considered a lower bound for signal time of flight (TOF) based localization approaches that utilize Fourier or correlation methods for the signal travel time estimation.

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The Roots, Rules, and Rise of RFID

Abstract: Phase jitter modulation offers several advantages, such as a constant amplitude of the field (and therefore power transmission).

Cited by 45 publications

References 21 publications

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Dual-Band Uhf Rfid Tag Antenna Using Two Eccentric Circular Rings

Bandwidth dependence of CW ranging to UHF RFID tags in severe multipath environments

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