Near-Field Chipless-RFID System With Erasable/Programmable 40-bit Tags Inkjet Printed on Paper Substrates (original) (raw)
Related papers
A Novel Compact Chipless RFID Tag and Near-Field Reader
A novel compact design of a fully printable chipless RFID tag and two near-field reading techniques for the designed tag are presented in this paper. The tag is made of two multiple slot-loaded rectangular patches. Slots with adjacent frequencies are placed alternately into two patches to reduce the mutual coupling between the slot resonators. The tag measurements are done for both proximity reading and slot card reading techniques. This single sided compact tag has higher data capacity and lower cost compared to the existing printable chipless tags. It can be incorporated in paper or plastic-based items such as ID cards, tickets and banknotes as an enhancement in security in a user friendly way.
High-Performance Chipless Radio-Frequency Identification Tags
2019
In this article, we introduce a novel planar chipless radiofrequency identification (RFID) tag. The tag is composed of multiple miniaturized reflecting resonators based on a slowwave structure. To validate the proposed approach, a tag with a coding capacity of 16 b was designed with a compact size of . 15 21 mm # Tags with different pattern configurations were fabricated using a Rogers RO4003 substrate, and their radar cross-section (RCS) responses were measured. Compared to conventional multiresonator tags, the proposed tag offers a good miniaturization ratio and spectral coding efficiency. In addition, the measurements revealed a high quality factor (Q-factor) and coding robustness, which demonstrates the efficiency of the used approach to develop high-performance chipless tags.
Directly Printed Packaging-Paper-Based Chipless RFID Tag With Coplanar LCLCLC Resonator
IEEE Antennas and Wireless Propagation Letters, 2013
The letter presents the design, simulation, fabrication and characterization of an LC resonator based chipless RFID tag. The ID generating circuit is designed based on a reconfigurable LC resonance circuit. Phase position modulation (PPM) coding is used for the enhancement of the coding capacity. The tag has been realized on packaging paper using all printing technique. In fabrication, overprinting process has been investigated as an effective pathway for the improvement of the conductivities. The tag with 4.25-bit coding capacity has been examined using a sweeping frequency signal transmitted from a vector network analyzer and experimental results confirm the feasibility of the proposed chipless tag. With further optimizations, the tag can be used in the item-level tracking and identification applications, especially for the management of paper tickets and banknotes.
Multi-Resonator Structure for Small Size Chipless Radio Frequency Identification Tag
International Journal of Computing and Digital Systemss, 2018
The recent growth in identification, tracking, and sensing applications for the Internet of Things (IoT) has pushed the RFID technology to gain much attention due to its remarkable advantages compared to conventional identification techniques. New resonator structure for chipless RFID tags is proposed. The proposed tag consists of three resonators arranged in a compact form, vertically polarized receiving antenna and horizontally polarized transmitting antenna. Two resonators are based on spiral type and the third is a simple transmission line configured in compact shape. The two antennas are designed to be wide band and orthogonally polarized for realizing the cross polarization retransmission process. The tag provides eight different codes in the range from 2.2 to 2.5 GHz. The prototype resonator structure of the tag is designed and fabricated on RT Duroid 5880 substrate (with a dielectric constant 2.2, loss tangent 0.0009 and thickness 0.79 mm). Area saving in the order of 30% with respect to conventional spiral resonator can be achieved. Good agreement between simulated and measured results is observed.
Design of Chipless RFID Tags Printed on Paper by Flexography
IEEE Transactions on Antennas and Propagation, 2000
In this paper, we demonstrate for the first time that a 19-bit chipless tag based on a paper substrate can be realized using the flexography technique, which is an industrial highspeed printing process. The chipless tag is able to operate within the ultra-wide band (UWB) and has a reasonable size (7x3 cm²) compared to state-of-the-art versions. Thus, it is possible to use this design for various identification applications that require a low unit cost of tags. Both the simulation and measurement results are shown, and performance comparisons are provided between several realization processes, such as classical chemical etching, flexography printing, and catalyst inkjet printing.
Triangular loop resonator based compact chipless RFID tag
IEICE Electronics Express, 2017
A novel, frequency selective surface (FSS) inspired, fully passive, chipless data encoding circuit capable of being operated as a radio frequency identification (RFID) tag is presented. The tag is composed of finite repetitions of the unit cell realized on a grounded FR4 substrate having an overall size of 27.5 × 30 mm 2. The unit cell is made up of several triangleshaped resonators patterned in a looped fashion. Variation in the geometric structure of the tag, achieved by addition or removal of nested loops, corresponds to a specific bit sequence. Each sequence is represented in the spectral domain as a unique frequency signature of the resonators. The proposed 10-bit tag covers the spectral range from 4 to 11 GHz. The tag is compact, robust, and exhibits a stable response to impinging signals at different angles of incidence.
Multiresonator-Based Chipless RFID System for Low-Cost Item Tracking
IEEE Transactions on Microwave Theory and Techniques, 2009
A fully passive printable chipless RFID system is presented. The chipless tag uses the amplitude and phase of the spectral signature of a multiresonator circuit and provides 1 : 1 correspondence of data bits. The tag comprises of a microstrip spiral multiresonator and cross-polarized transmitting and receiving microstrip ultra-wideband disc loaded monopole antennas. The reader antenna is a log periodic dipole antenna with average 5.5-dBi gain. Firstly, a 6-bit chipless tag is designed to encode 000000 and 010101 IDs. Finally, a 35-bit chipless tag based on the same principle is presented. The tag has potentials for low-cost item tagging such as banknotes and secured documents.
IEEE Journal of Microwaves
In this paper, a unique structural design methodology for chipless radio-frequency identification (RFID) tags in frequency domain is presented. The tag geometry is developed by loading an open-loop resonator with micro-metallic-cells (MMC). The realization give rise to a checkerboard resonator type with electromagnetic signatures in its radar cross section that are extremely efficient to manipulate. The resonators layout is distributed on either side of a Rogers substrate to double its coding density. The proposed chipless RFID tag has a memory of 8-bits in total. The operating band of the tag is 6.5-10.5 GHz. The tag has a high bit coding density of 10.94 bits/cm 2 and spectral efficiency of 2 bits/GHz. The tag has a very compact size of 17.4 × 4.2 mm 2. The simple structuring methodology and efficient resonators layout will give RFID system designers the flexibility to apply the proposed tag in a wide range of modern applications. INDEX TERMS Chipless radio frequency identification (CRFID), frequency-domain (FD), miniaturization, open-loop, radar cross section (RCS), resonators, tag.
Sensors
A 32-bit chipless RFID tag operating in the 4.5–10.9 GHz band is presented in this paper. The tag has a unique multiple-arc-type shape consisting of closely packed 0.2 mm wide arcs of different radii and lengths. The specific tag geometry provides multiple resonances in frequency domain of an RCS plot. A frequency domain coding technique has also been proposed to encode the tag’s RCS signature into a 32-bit digital identification code. The tag has an overall dimension of 17.9 × 17.9 mm2, resulting in a high code density of 9.98 bits/cm2 and spectral efficiency of 5 bits/GHz. The proposed tag is built on a low loss substrate bearing a very small footprint, thereby making it extremely suitable for large-scale product identification purposes in future chipless RFID tag systems.