Flexible RFID Tag Inductor Printed by Liquid Metal Ink Printer and Its Characterization

2016 ◽  
Vol 138 (3) ◽  
Author(s):  
Yunxia Gao ◽  
Rui Liu ◽  
Xianping Wang ◽  
Jing Liu ◽  
Qianfeng Fang
Keyword(s):  
Liquid Metal ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Flexible Substrates ◽  
Rfid Tag ◽  
Effect Factor ◽  
Frequency Identification ◽  
Application Fields ◽  
The Relationship ◽  
Liquid Metal Ink

In order to fulfill various growing needs of application fields, the development of low-cost directly printable radio-frequency identification (RFID) tag is essential for item level tracking. Currently, there lacks an easily available way to directly write out functional consumer electronicslike typewriting on paper by an office printer. Here, we show a desktop printing of RFID tag inductors on flexible substrates via developing liquid metal ink and related working mechanisms. The directly printing inductor on various flexible substrates with extremely low cost and rapid speed was designed based on the sympathetic oscillations of multiple LC (inductor–capacitor) circuits. In order to better meet the demands of the distinct resonant circuits, a series of conceptual experiments for investigating the relationship between the character of the inductor and its parameters—shape, number of coils, line width, spacing, etc.,—have been designed. The parameters are all working upon the performance of the printed inductors by liquid metal ink printer, and the relationship laws are consistent with those of the conventional inductors. The coils number as the biggest effect factor has a linear relationship with the inductance of the spiral-type inductors. An inductor with excellent properties can be well chosen by adjusting its parameters according to various applications. The present work demonstrated the way for a low cost and easy going method in directly printing RFID tag inductors on flexible substrates.

scholarly journals On the application of the EM-imaging for chipless RFID tags

2015 ◽  
Vol 2 (2) ◽  
pp. 86-96 ◽  
Author(s):  
M. Zomorrodi ◽  
N.C. Karmakar
Keyword(s):  
Radio Frequency Identification ◽  
Low Cost ◽  
60 Ghz ◽  
Rfid Tag ◽  
High Data ◽  
Data Encoding ◽  
Bending Effect ◽  
Chipless Rfid ◽  
Frequency Identification ◽  
Cost Item

The electromagnetic (EM) imaging technique at mm-band 60 GHz is proposed for data encoding purpose in the chipless Radio Frequency Identification (RFID) systems. The fully printable chipless RFID tag comprises tiny conductive EM polarizers to create high cross-polar radar cross-section. Synthetic aperture radar approach is applied for formation of the tag's EM-image and revealing the tag's content. The achieved high data encoding capacity of 2 bits/cm2in this technique based on a fully printable tag is very convincing for many applications. The system immunity to multipath interference, bending effect, and printing inaccuracy suggests huge potentials for low-cost item tagging. Tags are also readable through a tick paper envelop; hence secure identification is provided by the proposed technique.

A New Scheme on XOR Operation for Low-Cost RFID

2013 ◽  
Vol 303-306 ◽  
pp. 2207-2210 ◽  
Author(s):  
Ming Li ◽  
Zhao Peng Dai ◽  
Fang Xi
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Random Number ◽  
Low Cost ◽  
Random Number Generator ◽  
Number Generator ◽  
High Complexity ◽  
Xor Operation ◽  
Frequency Identification ◽  
The Relationship

In order to overcome the high complexity of the tag in RFID, a new XOR scheme is proposed based on the relationship between X and Z for X XOR (X + On) =Z. As only XOR and random number generator are required to be computed by tags，it is very suitable for low—cost Radio Frequency Identification(RFID) system .

scholarly journals Miniaturized Chipless RFID Tags Based on Periodically Loaded Microstrip Structure

2019 ◽  
Vol 9 (5) ◽  
pp. 4679-4684
Author(s):  
M. Added ◽  
K. Rabaani ◽  
S. Chabaan ◽  
N. Boulejfen
Keyword(s):  
Radio Frequency Identification ◽  
Low Cost ◽  
Resonant Circuit ◽  
Rfid Tags ◽  
Frequency Range ◽  
Rfid Tag ◽  
Chipless Rfid ◽  
Frequency Identification ◽  
Coding Capacity ◽  
Microstrip Structure

A compact chipless radio frequency identification (RFID) tag-based on slow-wave technology is introduced in this paper. The tag consists of a resonant circuit based on open stub resonators periodically loaded by shunt stubs allowing a coding capacity of 9 bits and operating in a frequency range from 2 to 4GHz. The receiving and transmitting antennas of the tag are particularly designed to minimize the tag size as much as possible. The proposed tag presents a robust bit pattern with a compact and fully printable structure using FR4 substrate for a low-cost tag.

scholarly journals A Hybrid Process for Printing Pure and High Conductivity Nanocrystalline Copper and Nickel on Flexible Polymeric Substrates

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Md Emran Hossain Bhuiyan ◽  
Ali Behroozfar ◽  
Soheil Daryadel ◽  
Salvador Moreno ◽  
Seyedreza Morsali ◽  
...  
Keyword(s):  
Radio Frequency Identification ◽  
Cyclic Strength ◽  
High Conductivity ◽  
Hybrid Process ◽  
Flexible Substrates ◽  
Polymeric Substrate ◽  
Rfid Tag ◽  
Deposited Metal ◽  
Frequency Identification ◽  
Polymeric Substrates

AbstractPrinting functional devices on flexible substrates requires printing of high conductivity metallic patterns. To prevent deformation and damage of the polymeric substrate, the processing (printing) and post-processing (annealing) temperature of the metal patterns must be lower than the glass transition temperature of the substrate. Here, a hybrid process including deposition of a sacrificial blanket thin film, followed by room environment nozzle-based electrodeposition, and subsequent etching of the blanket film is demonstrated to print pure and nanocrystalline metallic (Ni and Cu) patterns on flexible substrates (PI and PET). Microscopy and spectroscopy showed that the printed metal is nanocrystalline, solid with no porosity and with low impurities. Electrical resistivity close to the bulk (~2-time) was obtained without any thermal annealing. Mechanical characterization confirmed excellent cyclic strength of the deposited metal, with limited degradation under high cyclic flexure. Several devices including radio frequency identification (RFID) tag, heater, strain gauge, and temperature sensor are demonstrated.

Two Layered Embedded Encryption for Multiple Frequency RFID Tags

2011 ◽  
Vol 367 ◽  
pp. 83-87
Author(s):  
K. Karthikeyan ◽  
Gaurav Bajpai
Keyword(s):  
Data Storage ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Automatic Identification ◽  
Identification System ◽  
Rfid Tags ◽  
Rfid Tag ◽  
Storage And Retrieval ◽  
Bar Codes ◽  
Frequency Identification

Radio Frequency Identification (RFID) is an automatic identification system. The data storage and retrieval on special devices are carried by RFID tags or transponders. RFID tag applications include enterprise supply chain management to improve the efficiency of inventory tracking and management. These replace bar codes and other low cost remote sensors earlier in use.

Design of a Novel Tag Antenna Mountable on the Side of Cigarette Carton

2012 ◽  
Vol 236-237 ◽  
pp. 970-975
Author(s):  
Qian Cao ◽  
Jian Xiong Li ◽  
Lu Hong Mao
Keyword(s):  
Radio Frequency Identification ◽  
Low Cost ◽  
Antenna Design ◽  
The Finite Element Method ◽  
Rfid Tag ◽  
Conductive Material ◽  
Radiation Properties ◽  
Frequency Identification ◽  
Rfid Applications ◽  
Read Range

The growing interest of Radio Frequency Identification (RFID) applications has seen problems emerging in the identification of object, especially those that contain conductive material. A low-cost novel tag antenna for a RFID tag which could be mounted on the side of cigarette carton is proposed in this paper. Since the cigarette carton contains conductive material, radiation properties of the antenna could be affected significantly. The specific parameters of the antenna were optimized based on the Finite Element Method (FEM). The performance of the tag antenna design affixed to the cigarette carton containing metallic foil is verified with read range measurements. The proposed antenna has a simulated bandwidth from 863 MHz to 943 MHz ( < -10 dB) for conjugate-matching with a commercial tag chip.

scholarly journals Flexible Radio-Frequency Identification (RFID) Tag Antenna for Sensor Applications

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4212 ◽  
Author(s):  
Mohammad Islam ◽  
Touhidul Alam ◽  
Iskandar Yahya ◽  
Mengu Cho
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
System Level ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Sensor Applications ◽  
Frequency Identification ◽  
Flexible Radio ◽  
Read Range

In this paper, an inkjet-printed flexible Radio-Frequency Identification (RFID) tag antenna is proposed for an ultra-high frequency (UHF) sensor application. The proposed tag antenna facilitates a system-level solution for low-cost and faster mass production of RFID passive tag antenna. The tag antenna consists of a modified meander line radiator with a semi-circular shaped feed network. The structure is printed on photo paper using silver nanoparticle conductive ink. The generic design outline, as well as tag antenna performances for several practical application aspects are investigated. The simulated and measured results verify the coverage of universal UHF RFID band with an omnidirectional radiation pattern and a long-read range of 15 ft. In addition, the read range for different bending angles and lifetimes of the tag antenna are also demonstrated.

scholarly journals Small Size and Low Cost UHF RFID Tag Antenna Mountable on Metallic Objects

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Sergio López-Soriano ◽  
Josep Parrón
Keyword(s):  
Radio Frequency ◽  
Transmission Line ◽  
Radio Frequency Identification ◽  
Low Cost ◽  
Experimental Results ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Frequency Identification ◽  
European Regulations ◽  
Metallic Object

Reducing tag size while maintaining good performance is one of the major challenges in radio-frequency identification applications (RFID), in particular when labeling metallic objects. In this contribution, a small size and low cost tag antenna for identifying metal objects in the European UHF band (865–868 MHz) is presented. The antenna consists of a transmission line mounted on an inexpensive thin dielectric which is proximity-coupled to a short-ended patch mounted on FR4 substrate. The overall dimensions of the tag are 33.5 × 30 × 3.1 mm. Experimental results show that, for an EIRP of 3.2 W (European regulations), such a small and cheap tag attains read ranges of about 5 m when attached to a metallic object.

scholarly journals Design of a Wireless, Passive, Single-Use Emergency Call System

2010 ◽  
Author(s):  
Wayne L. Staats ◽  
Dan P. Lorenc ◽  
Zihao Zhang ◽  
Ethan L. Huwe ◽  
Mark M. Barineau ◽  
...  
Keyword(s):  
Radio Frequency Identification ◽  
Disease Transmission ◽  
Low Cost ◽  
Hospital Staff ◽  
Rfid Tag ◽  
Frequency Identification ◽  
Single Use ◽  
Passive Rfid ◽  
Mechanical Switch ◽  
Improve Patient

In order to improve patient access to nurses during emergencies, a wireless wrist-mounted call button system was developed. The goal of this project was to create a simple, easy-to-use system that features a completely passive, wireless call button. Three major problems in existing systems — inability for patients to locate or reach the button, unnecessary user interface complexity, and the introduction of a potential vector for hospital-contracted illness — were addressed in the design. The wireless nature of the device ensures that it is always near the patient. A single-button interface considerably simplifies its use in comparison to multi-button systems, eliminating the possibility of incorrect button presses. Finally, the proposed call button uses inexpensive technologies and can be manufactured for such a low cost that it can be offered as a single-use device, eliminating the possibility of patient-to-patient disease transmission. Using radio-frequency identification (RFID) technology, patients are able to call for hospital staff from any location in the hospital that is covered by readers. The call button uses a passive RFID tag that can be turned on or off by a mechanical switch. A second tag is used to notify the system when a patient is out of range. The design was prototyped and tested, and future improvements are suggested.

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