A T-matched dipole antenna with a dielectric superstrate for UHF RFID tag

IEEE iWEM2011 ◽  
2011 ◽  
Author(s):  
Wei-Chih Chen ◽  
Hua-Ming Chen ◽  
Yi-Fang Lin ◽  
Jyun-Wei Jhuang ◽  
Sue-Wei Chang ◽  
...  
Keyword(s):  
Dipole Antenna ◽  
Uhf Rfid ◽  
Rfid Tag

Structure optimization of an ultrahigh frequency radio frequency identification tag thread based on the normal mode helix dipole antenna

2020 ◽  
pp. 004051752094890
Author(s):  
Yong Zhang ◽  
Jiyong Hu ◽  
Xiong Yan ◽  
Xudong Yang
Keyword(s):  
Resonant Frequency ◽  
Normal Mode ◽  
Radio Frequency Identification ◽  
Dipole Antenna ◽  
Uhf Rfid ◽  
Simulation Experiments ◽  
Rfid Tag ◽  
Helical Pitch ◽  
Frequency Identification ◽  
Linear Dipole

This paper describes the design of a novel ultrahigh frequency radio frequency identification (UHF RFID) tag thread that mainly consisted of the common yarn and the normal mode helix dipole antenna. The linear dipole antenna for the UHF RFID tag thread was too long to miniaturize the tag. In order to maximize the read performance and miniaturize the size of the tag, the basic antenna structure parameters, such as the helical pitch and single arm length, were optimized by analyzing the radiation parameter S11 of the normal mode helix dipole antenna based on simulation experiments. The simulation experiments started with optimizing the single arm length to obtain the minimum of the S11 parameter at resonant frequency, then the helical pitch was further optimized to limit the resonant frequency to the UHF range. The simulation results showed the resonant frequency rises with an increase of helical pitch and declines with an increase of single arm length. Furthermore, a series of UHF RFID tag threads with good performance from the simulation cases were prepared, and the performance of the optimized tag was validated. Generally, the UHF RFID tag thread with optimized helix dipole antenna could reduce the axial length of the tag by 57% and improve the reading range by 500%, and its performance was greatly superior to that of the UHF RFID tag thread with the classical linear dipole antenna.

Design and Analysis of UHF RFID Tag Antenna on the Surface of Cylinder

2014 ◽  
Vol 541-542 ◽  
pp. 458-461
Author(s):  
Pu Yu Duan ◽  
Dong Wang
Keyword(s):  
Plane Surface ◽  
Impedance Matching ◽  
Dipole Antenna ◽  
Cylinder Surface ◽  
Uhf Rfid ◽  
Logistics Industry ◽  
Rfid Tag ◽  
The Impact ◽  
Meander Line ◽  
Read Range

Cylinder is a common object and used in logistics industry, such as liquid container like wine. The performance of tags that are used on these objects declines, especially the read range and the radiation pattern of the tag. In this paper, a type of UHF tag antenna directly mountable on the cylinder surface. In order to reduce the impact of the deformation, the tag is designed with meander-line but not symmetrical. Antenna is combined with T-matching network to ensure good impedance matching. Compared with the basic dipole antenna tag both cylinder and plane surface, we can get the prominent feature of the tag proposed in this paper.

Graphene-based dipole antenna for a UHF RFID tag

2015 ◽  
Author(s):  
P. Kopyt ◽  
B. Salski ◽  
M. Olszewska ◽  
D. Janczak ◽  
M. Sloma ◽  
...  
Keyword(s):  
Dipole Antenna ◽  
Uhf Rfid ◽  
Rfid Tag

Design of modified folded dipole antenna for UHF RFID tag

2009 ◽  
Vol 45 (8) ◽  
pp. 387 ◽  
Author(s):  
Y. Choi ◽  
U. Kim ◽  
J. Kim ◽  
J. Choi
Keyword(s):  
Dipole Antenna ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Folded Dipole

scholarly journals A Miniaturized Meandered Dipole UHF RFID Tag Antenna for Flexible Application

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Xiuwei Xuan ◽  
Lianrong Lv ◽  
Kun Li
Keyword(s):  
Large Scale ◽  
Experimental Studies ◽  
Dipole Antenna ◽  
Threshold Power ◽  
Uhf Rfid ◽  
Minimum Threshold ◽  
Rfid Tag ◽  
Resonance Frequencies ◽  
Simulation Results ◽  
Flexible Application

A miniaturized meandered dipole antenna for UHF RFID tag is proposed. Different resonance frequencies and impedance can be achieved by adjusting the number of the meanders, which can help to reduce the size of the antenna. Due to the radiation patches, the input impedance of the antenna can be flexibly tuned in a large scale. The proposed antenna is printed on polyethylene (PET) substrate with a total volume of 48 mm × 13.7 mm × 0.5 mm. Modeling and simulation results show that the reflection coefficient of the antenna is less than −15 dB at 860–960 MHz. Experimental studies demonstrate that the minimum threshold power of the antenna is between 23 and 26 dBm and the measured read range is 3-4 m.

scholarly journals A Compact Broad-band UHF RFID Tag Loaded with Triangular SRR Arrays

2018 ◽  
Vol 7 (2) ◽  
pp. 48-52 ◽  
Author(s):  
A. K. K. John ◽  
T. Mathew
Keyword(s):  
Impedance Matching ◽  
Broad Band ◽  
Dipole Antenna ◽  
The Other ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Read Range ◽  
Compact Planar

A novel compact planar UHF RFID tag with broadband operation and enhanced read range characteristics are presented. The structure of the tag consists of a T- matched dipole antenna whose arms are orthogonally loaded with Triangular SRR arrays. Triangular SRR arms loaded in the structure produce compactness and good impedance matching which is needed for maximizing the read range. The measured results shows that the projected tag shows a highest read range of 9.6 meter in the European UHF RFID band of 866 MHz and significantly better read range in the other UHF RFID bands in the 860-930 MHz range . Measured read range differences over the azimuth and elevation angular ranges are also suggested.

scholarly journals A BROADBAND MODIFIED T-SHAPED PLANAR DIPOLE ANTENNA FOR UHF RFID TAG APPLICATIONS

2017 ◽  
Vol 73 ◽  
pp. 137-144
Author(s):  
Ikram Aznabet ◽  
Mohammed Ali Ennasar ◽  
Otman El Mrabet ◽  
Gianfranco Andia-Vera ◽  
Mohsine Khalladi ◽  
...  
Keyword(s):  
Dipole Antenna ◽  
Uhf Rfid ◽  
Rfid Tag

scholarly journals A Bending Passive RFID Tag as a Sensor for High-Temperature Exposure

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Zahangir Khan ◽  
Xiaochen Chen ◽  
Han He ◽  
Adnan Mehmood ◽  
Johanna Virkki
Keyword(s):  
High Temperature ◽  
Cost Effective ◽  
Dipole Antenna ◽  
Low Energy ◽  
Temperature Sensitive ◽  
Uhf Rfid ◽  
High Temperature Exposure ◽  
Rfid Tag ◽  
Temperature Exposure ◽  
Read Range

This paper introduces a prototype of a low-energy high-temperature exposure sensor, which is a temperature-sensitive passive UHF RFID tag that bends forward when exposed to warm air. This “Bending Tag” design is based on a simple dipole antenna fabricated from an electro-textile material. The antenna has a 3D-printed substrate, which is constructed from a commercial Thermo Reactive Filament that gets soft when exposed to 50°C for 30 seconds, causing the tag to bend forward and curve. The sensor tag initially has a read range of more than 6 meters throughout the global UHF RFID frequency band. After bending, there is a significant decrease in the read range (to around 2–3 meters), which is caused by the changed backscattered power of the sensor tag. In an office environment, the backscattered power changes from −36 dBm to −43 dBm. The change in a sensor tag-reference tag system as dP% is approximately 70%. Based on these initial results, our bending tag can be further developed to work as a cost-effective low-energy sensor for monitoring high-temperature exposure.

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