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Inkjet-printed flexible RFID antenna for UHF RFID transponders Cover

Inkjet-printed flexible RFID antenna for UHF RFID transponders

Open Access
|Nov 2016

Figures & Tables

Geometrical model of transponder antenna
Transponder antenna: (a) geometrical model, (b) cut samples, (c) samples after printing
Nanomaterial deposition problems: (a – e) different parameters of generated drops, (f – h) structure defects
Printhead drops frequency distribution for: a) given speed, b) given volume
Ink spreading problems: (a) lack of regularity, (b) various conditions of wettability, (c) strongly hydrophilic substrate, (d) strongly hydrophobic substrate, (e) heterogeneity in the spread
Morphology of printed structures
Transponder antenna parameters: (a) CMF, (b) a sample under the test
Impedance of transponder antenna: Re(ZA) – real part, Im(ZA) – imaginary part
Transponders under application tests: (a) integration with a PET bottle, (b) integration with a cardboard box, (c) record of the serial number in the RWD application.

Technological parameters used for layers printing

SampleS1S2S3 – S6S7
Layer 1 printN1N25N47N47
Layer 2 printN11N47N47N47
Layer 3 printN47

Dimensions of realized transponder antenna elements in millimeters

RVARVRVMINRVMAX
DESS1S3S7S1S3S7S1S3S7S1S3S7
A1.601.521.500.100.020.001.581.501.501.651.551.55
C1.841.761.800.140.060.101.751.701.781.901.851.82
D1.101.001.000.100.000.001.051.001.001.151.101.10
E0.480.420.420.02–0.08–0.090.400.380.380.600.480.47
F0.470.430.45–0.03–0.07–0.050.400.380.400.520.520.52
G1.641.601.630.140.100.131.551.581.601.701.611.65
H0.450.400.40–0.06–0.10–0.100.360.380.390.500.530.50
HI0.640.650.690.140.150.190.620.550.670.650.680.70
I1.061.031.010.060.030.011.001.001.001.101.201.20
V115.30115.25115.29–0.10–0.15–0.11underlined – cross dimension to print direction

Dimensions of transponder antenna elements in millimeters

DESPVDESPVDESPVDESPVDESPVDESPV
A1.50E0.50HI0.50L7.50P9.00U10.20
B0.50F0.50I1.00M11.00R11.00V115.40
C1.70G1.50J0.50N13.00S8.50Y35.00
D1.00H0.50K14.00O10.00T11.00Z130.00

Maximal distance (read range) for tested transponders in centimeters

POUTRPHmaxRBHmaxRBVmax
[W][cm][cm][cm]
2.0131921
1.5121719
1.0111115

Parameters of the transponder antenna

FSMROMS1S2S3S4S5S6S7
Re(Z), Ω3751129130114113115110107
Im(Z), Ω336479433455440447447431449
CMF, –0.810.130.260.230.260.240.240.280.24
DOI: https://doi.org/10.1515/msp-2016-0097 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
Language: English
Page range: 760 - 769
Submitted on: Feb 1, 2016
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Accepted on: Aug 25, 2016
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Published on: Nov 17, 2016
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2016 Grzegorz Tomaszewski, Piotr Jankowski-Mihułowicz, Mariusz Węglarski, Wojciech Lichoń, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.