scholarly journals Miniature Compact Folded Dipole for Metal Mountable UHF RFID Tag Antenna

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 713 ◽  
Author(s):  
Fuad Erman ◽  
Effariza Hanafi ◽  
Eng-Hock Lim ◽  
Wan Amirul Wan Mohd Mahyiddin ◽  
Sulaiman Wadi Harun ◽  
...  
Keyword(s):  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Single Layer ◽  
Metal Plate ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Tuning Method ◽  
Strip Lines ◽  
Folded Dipole ◽  
Outer Strip

This article describes the design of an Ultra-High Frequency (UHF) miniature folded dipole Radio Frequency Identification (RFID) tag antenna that can be mountable on metallic objects. The compact tag antenna is formed from symmetric C-shaped resonators connected with additional arms embedded into the outer strip lines for miniaturization purposes. It is loaded with outer strip lines, resulting in a flexible tuning method that is capable of matching the integrated circuit (IC) chip’s impedance. The proposed tag is fabricated on a single layer of Polytetrafluoroethylene (PTFE) substrate. It has simple structure and does not require any metallic vias or shorting plate. The miniature tag antenna with a size of 82.75 × 19.5 × 1.5   mm 3 yields a total realized gain of − 0.53   dB at the resonance frequency when attached to a 40 × 40   cm 2 metal plate. The presented design utilizes a European RFID band, and the simulated results of realized gain, read range, and input impedance are verified with measurement results.

scholarly journals Low-profile folded dipole UHF RFID tag antenna with outer strip lines for metal mounting application

2020 ◽  
Vol 28 (5) ◽  
pp. 2643-2656
Author(s):  
Fuad ERMAN ◽  
Effariza HANAFI ◽  
Eng-Hock LIM ◽  
Wan Amirul WAN MOHD MAHYIDDIN ◽  
Sulaiman Wadi HARUN ◽  
...  
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Low Profile ◽  
Strip Lines ◽  
Folded Dipole ◽  
Outer Strip

scholarly journals A New Washable UHF RFID Tag: Design, Fabrication, and Assessment

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3451 ◽  
Author(s):  
Aurelian Moraru ◽  
Corneliu Ursachi ◽  
Elena Helerea
Keyword(s):  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Steel Wire ◽  
Power Level ◽  
Coupling Factor ◽  
Inductive Coupling ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Inductively Coupled ◽  
Coupling Loop

This paper deals with the design and fabrication of durable radio frequency identification (RFID) passive tag with inductive coupling, operating at ultra-high frequencies, dedicated to the identification and monitoring of professional textile products. A reliable architecture for the tag transponder is proposed, featuring a minimal number of galvanic contacts: The two pins of the integrated circuit are connected to the terminals of the inductive coupling loop by using surface mount technology welding. The transponder is encapsulated with an electrically insulating material which is waterproof and resistant to mechanical, thermal, and chemical stress. The antenna is inductively coupled to the transponder through a double loop which substantially reduces the length of the tag and significantly improves the coupling factor, enabling the tag to operate at a low power level. The reliability and flexibility of the tag is obtained by using appropriate materials and manufacturing methods for the ultra-high frequency (UHF) antenna by embroidering a multifilament stainless steel wire on textile support. The washing cycle tests have validated the applicability of this flexible and washable RFID tag, and its electromagnetic performance was experimentally assessed in an independent laboratory.

Single-Layer UHF RFID Tag Antenna with Multifunctional Characteristics

2018 ◽  
Author(s):  
Mohamed EL Bakkali ◽  
Otman EL Mrabet ◽  
Mohamed EL Khamlichi ◽  
Mohsine Khalladi ◽  
Mohammed Ali Ennasar
Keyword(s):  
Single Layer ◽  
Uhf Rfid ◽  
Rfid Tag

scholarly journals Longest-Range UHF RFID Sensor Tag Antenna for IoT Applied for Metal and Non-Metal Objects

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5460 ◽  
Author(s):  
Franck Kimetya Byondi ◽  
Youchung Chung
Keyword(s):  
Wireless Sensor Networks ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Wireless Sensor ◽  
The Internet ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Frequency Identification ◽  
The Internet Of Things ◽  
Read Range

This paper presents a passive cavity type Ultra High Frequency (UHF) Radio Frequency Identification (RFID) tag antenna having the longest read-range, and compares it with existing long-range UHF RFID tag antenna. The study also demonstrates mathematically and experimentally that our proposed longest-range UHF RFID cavity type tag antenna has a longer read-range than existing passive tag antennas. Our tag antenna was designed with 140 × 60 × 10 mm3 size, and reached 26 m measured read-range and 36.3 m mathematically calculated read-range. This UHF tag antenna can be applied to metal and non-metal objects. By adding a further sensing capability, it can have a great benefit for the Internet of Things (IoT) and wireless sensor networks (WSN).

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.

A Novel Design of PIE Decoding with Multiple CRC Circuit for RFID Tag

2013 ◽  
Vol 816-817 ◽  
pp. 957-961
Author(s):  
Feng Ying Huang ◽  
Jun Wang ◽  
Yu Sen Xu ◽  
Ji Wei Huang
Keyword(s):  
Data Processing ◽  
Parallel Algorithm ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Pulse Interval ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Frequency Identification ◽  
Simulation Results ◽  
Novel Design

This paper proposes a new synchronized serial-parallel CRC(Cycle Redundancy Check) with PIE(Pulse Interval Encoding) decoding circuit for the UHF(Ultra-High Frequency) RFID(Radio Frequency Identification), which is based on the ISO/IEC 18000-6C standards protocol. The parallel algorithm of CRC circuit is derived, and the serial or parallel CRC circuit on RFID tag chip is evaluated in this paper. Finally, the designed circuit is simulated and analyzed on the FPGA platform. Simulation results show that the proposed circuit meets the communication requirement of the protocol and addresses the problem of low data processing rate of conventional serial CRC circuit, as well as implements 1 to 8 degree of parallelism of the parallel CRC circuit for UHF RFID.

scholarly journals PERANCANGAN SISTEM SMARTCARD SEBAGAI PENGAMAN PINTU MENGGUNAKAN RFID BERBASIS ARDUINO

CCIT Journal ◽  
2017 ◽  
Vol 10 (2) ◽  
pp. 239-254
Author(s):  
Ferry Sudarto ◽  
Gustasari Gustasari ◽  
Arwan Arwan
Keyword(s):  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
New Technologies ◽  
New Technology ◽  
Security Systems ◽  
Transmission Frequency ◽  
Rfid Tag ◽  
Rfid Systems ◽  
Frequency Identification ◽  
Circuit Technology

Along with the development of science and technology so rapidly trigger the emergence of new technologies, one of which is RFID. RFID (Radio Frequency Identification) is a process of identifying the object or objects using radio transmission frequency. RFID is a new technology, and will continue to evolve in line with advances in integrated circuit technology, it can be ascertained that the RFID tag can be applied in various fields. RFID systems offer increased efficiency in controlling inventory control in the identification of objects. RFID can be used to store and receive data remotely using a device that RFID TAG (transponder). Many applications can utilize RFID systems, for example for indoor security systems, highways, libraries, class attendance, even as the identity of the student / students. Therefore, in this researchRaharja College presenting a Smartcard System Design using RFID as a device interface and ARDUINO UNO as a controller to be used as a door security system. With the presence of this system is expected to be a useful new innovation in Raharja College and can improve the shortcomings of existing systems and can provide maximum service to the whole personal raharja.

scholarly journals Microruban Dipole Antenna for RFID Applications at 2.45 GHz

2016 ◽  
Vol 6 (6) ◽  
pp. 2891 ◽  
Author(s):  
Loubna Berrich ◽  
Lahbib Zenkouar
Keyword(s):  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Input Impedance ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Reflection Coefficients ◽  
Ansoft Hfss ◽  
Frequency Identification ◽  
Folded Dipole ◽  
Rfid Applications

<p><span lang="EN-US">Radio Frequency Identification (RFID) is a technology used mainly to identify tagged items or to track their locations. The most used antennas for RFID application are planar dipoles. For antenna design, it is necessary that the antenna has an impedance value equal to the conjugate of the impedance of the integrated circuit CI. To have a good adaptation allowing the maximum power transfer, there are several techniques. In this work we focus to the adaptation technical T-match which is based on the insertion of a second folded dipole in the center of the first dipole. This technique is modeled by an equivalent circuit to calculate the size of the folded dipole to have new input impedance of the antenna equal to the conjugate of the impedance of the IC. We also look to present a conceptual and technological approach of new topologies of linear dipoles. We proceeded to fold at right angles of the radiating strands in order to explore other topologiesof type  L and Z. The interest of this microstrip folded dipole is their effectiveness to achieve coverage of Blind directions. The results obtained by the platform Ansoft HFSS, allowed us to obtain a quasi-uniform radiation patterns and the reflection coefficients that exceed -37 dB.</span></p>

scholarly journals Autism Support System using RFID Technology

2019 ◽  
Vol 9 (1) ◽  
pp. 4706-4710
Keyword(s):  
Autism Spectrum Disorder ◽  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Text Message ◽  
Autism Spectrum ◽  
Location Tracking ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Normal Text ◽  
Frequency Identification

This study represents a device to identify the location of an Autism Spectrum Disorder(ASD) child using an Radio Frequency Identification (RFID). This is a wearable device, that is to be worn by the autism child, which allows the parent to track the child anytime, anywhere .The RFID technology is implied for the location tracking, The RFID Tag is affixed on the device, the reader which is supposed to sense the RFID tag is placed at the spots such as classroom etc. The reader when it senses the tag notifies the parent through a message. When an RFID tag passes through the electromagnetic zone, it detects the activation signal produced by the reader. The encoded data present in the integrated circuit of the tag is being encoded by the reader and the data is delivered to the host computer for processing. The location can be sent to parent in the form of a normal text message via GSM. Autism children deserve to acquire knowledge and explore the environment. To overcome the obstruction this device will be of immense help.

scholarly journals Stretchable Textile Yarn Based on UHF RFID Helical Tag

Textiles ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 547-557
Author(s):  
Sofia Benouakta ◽  
Florin Doru Hutu ◽  
Yvan Duroc
Keyword(s):  
Radio Frequency Identification ◽  
Textile Yarn ◽  
Radiative Properties ◽  
Rfid Tags ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Half Wave ◽  
Present Solution ◽  
Frequency Identification ◽  
Helical Geometry

In the context of wearable technology, several techniques have been used for the fabrication of radio frequency identification (RFID) tags such as 3D printing, inkjet printing, and even embroidery. In contrast to these methods where the tag is attached to the object by using sewing or simple sticking, the E-Thread® technology is a novel assembling method allowing for the integration of the RFID tag into a textile yarn and thus makes it embeddable into the object at the fabrication stage. The current E-Thread® yarn uses a RFID tag in which the antenna is a straight half-wave dipole that makes the solution vulnerable to mechanical strains (i.e., elongation). In this paper, we propose an alternative to the current RFID yarn solution with the use of an antenna having a helical geometry that answers to the mechanical issues and keeps quite similar electrical and radiative properties with respect to the present solution. The RFID helical tag was designed and simulated taking into consideration the constraints of the manufacturing process. The helical RFID tag was then fabricated using the E-Thread® technology and experimental characterization showed that the obtained structure exhibited good performance with 10.6 m of read range in the ultra high frequency (UHF) RFID band and 10% of tolerance in terms of elongation.

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