Low cost low sampling noise UWB Chipless RFID reader

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.

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When a Single Chip becomes the RFID Reader: An Ultra-low-cost 60 GHz Reader and mmID System for Ultra-accurate 2D Microlocalization

2021 IEEE International Conference on RFID (RFID) ◽

10.1109/rfid52461.2021.9444319 ◽

2021 ◽

Author(s):

Charles A. Lynch ◽

Ajibayo O. Adeyeye ◽

J. G.D. Hester ◽

Manos M. Tentzeris

Keyword(s):

Low Cost ◽

60 Ghz ◽

Single Chip ◽

Rfid Reader

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UWB Chipless RFID Reader: State of the Art

Chipless RFID Reader Design for Ultra-Wideband Technology ◽

10.1016/b978-1-78548-292-2.50002-1 ◽

2018 ◽

pp. 21-39

Author(s):

Marco Garbati ◽

Etienne Perret ◽

Romain Siragusa

Keyword(s):

State Of The Art ◽

Rfid Reader ◽

Chipless Rfid

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Low Cost High Gain Patch Antenna with Probe Fed for UHF RFID Reader

2018 21st International Symposium on Wireless Personal Multimedia Communications (WPMC) ◽

10.1109/wpmc.2018.8713143 ◽

2018 ◽

Author(s):

Chatchai Chokchai

Keyword(s):

Patch Antenna ◽

Low Cost ◽

High Gain ◽

Uhf Rfid ◽

Rfid Reader

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Three-Dimensional Chipless RFID Tags: Fabrication through Additive Manufacturing

Sensors ◽

10.3390/s20174740 ◽

2020 ◽

Vol 20 (17) ◽

pp. 4740

Author(s):

Sergio Terranova ◽

Filippo Costa ◽

Giuliano Manara ◽

Simone Genovesi

Keyword(s):

Radio Frequency Identification ◽

Low Cost ◽

Three Dimensional ◽

Rfid Tags ◽

Metallic Surfaces ◽

Data Encoding ◽

Chipless Rfid ◽

Frequency Identification ◽

3D Printed ◽

Promising Solution

A new class of Radio Frequency IDentification (RFID) tags, namely the three-dimensional (3D)-printed chipless RFID one, is proposed, and their performance is assessed. These tags can be realized by low-cost materials, inexpensive manufacturing processes and can be mounted on metallic surfaces. The tag consists of a solid dielectric cylinder, which externally appears as homogeneous. However, the information is hidden in the inner structure of the object, where voids are created to encrypt information in the object. The proposed chipless tag represents a promising solution for anti-counterfeiting or security applications, since it avoids an unwanted eavesdropping during the reading process or information retrieval from a visual inspection that may affect other chipless systems. The adopted data-encoding algorithm does not rely on On–Off or amplitude schemes that are commonly adopted in the chipless RFID implementations but it is based on the maximization of available states or the maximization of non-overlapping regions of uncertainty. The performance of such class of chipless RFID tags are finally assessed by measurements on real prototypes.

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High-Density 3D Printable Chipless RFID Tag with Structure of Passive Slot Rings

Sensors ◽

10.3390/s19112535 ◽

2019 ◽

Vol 19 (11) ◽

pp. 2535 ◽

Cited By ~ 5

Author(s):

Zhonghua Ma ◽

Yanfeng Jiang

Keyword(s):

Radio Frequency Identification ◽

Low Cost ◽

Vertical Direction ◽

High Sensitivity ◽

High Density ◽

Frequency Spectra ◽

Rfid Tag ◽

Rectangular Slot ◽

Chipless Rfid ◽

Electric Field Direction

A three-dimensional (3D) printable chipless radio frequency identification (RFID) tag, with high density and sensitivity, is proposed and fulfilled on insulator substrates. By printing a rectangular slot ring and designing specific geometry on the substrate, the printed structure shows high sensitivity in a resonant manner, with the benefits of high density and low cost. Considering the multiple rectangular rings with different sizes in a concentric distribution, a bit coding sequence can be observed in frequency spectra because of the corresponding different resonant frequencies aroused by the printed slots. In this way, the 3D printable chipless RFID tag can be fulfilled by adopting the structure of the rectangular slot ring on the insulated substrates. The main characteristics of the designed rectangular slot rings are verified on both flexible and solid substrates. A 12-bit chipless tag based on the slot ring structures is designed and implemented. The simulation and experiment results show good agreement on its characteristics. The frequency response reveals the fact that the 2th, 3th and 4th harmonic do not exist, which is a unique merit for improving the encoding capacity and the sensitivity of the corresponding reader. The electric field direction of the electromagnetic wave of the reader excitation tag is demonstrated to be wide, up to 90° on the tag horizontal plane, 30° on the vertical direction.

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