Pervasive electromagnetics: sensing paradigms by passive RFID technology

Marrocco, Gaetano

doi:10.1109/mwc.2010.5675773

Cited by 123 publications

(65 citation statements)

References 8 publications

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“…Two design schemes can be considered if a fragmented RFID tag is to be designed to fit all five chips. One is to define a power wave reflection coefficient for every of the five chips, which will yield five power wave reflection coefficients, and thus lead to a five-objective optimization problem as in (3). The other is to define two power wave reflection coefficients according to the upper and lower bounds of those chip impedances in Table 1, and to form a two-objective optimization problem as in (3).…”

Section: Design Of a Versatile Fragmented Round Uhf Tagmentioning

confidence: 99%

“…Nowadays, more stress of RFID is laid on application specific designs such as UHF RFID tag of antenna tolerance to variations in the platform [1,2], RFID sensor tags [3][4][5], RFID-involved wearable technology [6] and green/renewable technology [7]. In these designs, traditional antenna structures with canonical geometry may become unpractical for RFID tags, and novel antenna structures are highly desired.…”

Section: Introductionmentioning

confidence: 99%

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Design of Tiny Versatile Uhf Rfid Tags of Fragment-Type Structure

Yang¹,

Wang²,

Ding³

2014

PIER M

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Abstract-Small ultra high frequency (UHF) radio frequency identification (RFID) tags of fragmenttype structure can be designed for broadband operation and for versatile impedance matching to different chips. The fragment-type tag structure can be optimized by using genetic algorithm. In our design, multi-objective evolutionary algorithm based on decomposition combined with enhanced genetic operators (MOEA/D-GO) is used for optimization searching. The multiple objectives are defined in terms of power transmission coefficients for operation in multiple RFID bands and for impedance matching to several prevailing RFID chips. For demonstration, a fragmented tiny square UHF tag of dimensions of 5.5 mm * 5.5 mm is designed for multi-band operation over the 433 MHz, 869 MHz and 915 MHz RFID bands, and a fragmented round tiny RFID tag of radius of 4.5 mm is also designed for versatile connection to five prevailing RFID chips at 915 MHz. The tiny round versatile tag is tested by connecting two chips, the IMPIMJ Monza-4 chip (11 − 143j) and ALIEN Higgs-3 chip (27 − 195j), respectively. Effects of input impedance and adjunct fragments on versatility of the design are further discussed.

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Section: Design Of a Versatile Fragmented Round Uhf Tagmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of Tiny Versatile Uhf Rfid Tags of Fragment-Type Structure

Yang¹,

Wang²,

Ding³

2014

PIER M

View full text Add to dashboard Cite

show abstract

“…However, these techniques are often not compatible with active wireless devices that are continuously real-time monitoring. On the opposite side to the active devices, wearable passive UHF Radio-Identification (RFID) sensors can be found, and they have been investigated at [6][7][8]. Passive tags take their energy from the RF interrogating signal.…”

Section: Introductionmentioning

confidence: 99%

Analysis of on-Body Transponders Based on Frequency Selective Surfaces

Lorenzo¹,

Lázaro²,

Girbau³

et al. 2016

PIER

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Abstract-This paper proposes a backscattering communication technique based on modulated frequency selective surfaces (FSS) for wearable applications. The FSS is composed of dipoles loaded with varactor diodes to modulate the backscatter response, in order to separate it from the clutter. The paper describes the effect in the transponder response according to the number of dipoles, the separation between them and the effect produced when FSS is placed on-body. An analysis based on simulations of several cases and experimental results is provided.

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“…A particular reader device is used to obtain the response of the tag. RFID-based sensing systems can also have significant potential in future Internet of Things (IoT) applications [2,3].…”

Section: Introductionmentioning

confidence: 99%

Harmonic Transponders: Performance and Challenges

Rasilainen¹,

Ilvonen²,

Lehtovuori³

et al. 2015

PIER M

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Abstract-Performance of a harmonic transponder strongly depends on the properties of the antenna and diode used, which makes finding a good combination of them very important. For a transponder with a fixed antenna geometry, the effect of different diodes is analyzed through electromagnetic simulations and theoretical calculations. The antenna used in the transponder is directly matched to the impedance properties of a particular diode. Effects of both detector and varactor diodes on the return loss characteristics of the antenna and the obtainable transponder response are observed. Criteria for selecting a suitable diode are given. Benefits and drawbacks of using different antenna matching techniques are discussed, and principal design steps are given both for transponders matched directly to the antenna and for transponders with external matching circuits.

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Pervasive electromagnetics: sensing paradigms by passive RFID technology

Cited by 123 publications

References 8 publications

Design of Tiny Versatile Uhf Rfid Tags of Fragment-Type Structure

Design of Tiny Versatile Uhf Rfid Tags of Fragment-Type Structure

Analysis of on-Body Transponders Based on Frequency Selective Surfaces

Harmonic Transponders: Performance and Challenges

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