Analysis and improvements of the pseudorandom number generation in passive UHF-RFID tags

We present the possibilities of 3D direct-write dispensing in the fabrication of passive UHF RFID graphene tags on a textile substrate. In our method, the graphene tag antenna is deposited directly on top of the IC strap, in order to simplify the manufacturing process by removing one step, that is, the IC attachment with conductive glue. Our wireless measurement results confirm that graphene RFID tags with printed antenna-IC interconnections achieve peak read ranges of 5.2 meters, which makes them comparable to graphene tags with epoxy-glued ICs. After keeping the tags in high humidity, the read ranges of the tags with epoxy-glued and printed antenna-IC interconnections decrease 0.8 meters and 0.5 meters, respectively. However, after drying, the performance of both types of tags returns back to normal.

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Simulation and measurements of physical layer parameters for passive UHF RFID tags toward collision detection and canceling

2012 IEEE International Conference on RFID-Technologies and Applications (RFID-TA) ◽

10.1109/rfid-ta.2012.6404551 ◽

2012 ◽

Cited By ~ 2

Author(s):

Benbaghdad Mohamed ◽

Belkacem Fergani ◽

Smail Tedjini ◽

Etienne Perret

Keyword(s):

Collision Detection ◽

Physical Layer ◽

Rfid Tags ◽

Uhf Rfid ◽

Passive Uhf Rfid

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Experimental Study on Inkjet-Printed Passive UHF RFID Tags on Versatile Paper-Based Substrates

International Journal of Antennas and Propagation ◽

10.1155/2016/9265159 ◽

2016 ◽

Vol 2016 ◽

pp. 1-8 ◽

Cited By ~ 7

Author(s):

Han He ◽

Lauri Sydänheimo ◽

Johanna Virkki ◽

Leena Ukkonen

Keyword(s):

Substrate Material ◽

Optimal Number ◽

Rfid Tags ◽

Uhf Rfid ◽

Rfid Tag ◽

Passive Uhf Rfid ◽

Wireless Applications ◽

Efficient Manufacturing ◽

Nanoparticle Ink ◽

Pattern Resolution

We present the possibilities and challenges of passive UHF RFID tag antennas manufactured by inkjet printing silver nanoparticle ink on versatile paper-based substrates. The most efficient manufacturing parameters, such as the pattern resolution, were determined and the optimal number of printed layers was evaluated for each substrate material. Next, inkjet-printed passive UHF RFID tags were fabricated on each substrate with the optimized parameters and number of layers. According to our measurements, the tags on different paper substrates showed peak read ranges of 4–6.5 meters and the tags on different cardboard substrates exhibited peak read ranges of 2–6 meters. Based on their wireless performance, these inkjet-printed paper-based passive UHF RFID tags are sufficient for many future wireless applications and comparable to tags fabricated on more traditional substrates, such as polyimide.

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Design of Nested H slot Passive UHF RFID Tag

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.c4721.1010120 ◽

2020 ◽

Vol 10 (1) ◽

pp. 346-349

Keyword(s):

High Frequency ◽

Microstrip Antenna ◽

Rfid Tags ◽

Uhf Rfid ◽

Antenna Structure ◽

Rfid Tag ◽

Passive Uhf Rfid ◽

Related Information ◽

Distance Communication ◽

Passive Rfid

RFID is a short distance communication system which comprises of a RFID tag, a RFID reader and a personal computer with desired software that can maintain the related information. These RFID tags can be of active or passive types. This paper focuses on design, simulation and fabrication of passive ultra-high frequency RFID tag (microchip and an antenna) which resonates at the frequency 866 MHz in the Industrial Scientific Medical Band. The nested H-slot inverted-F microstrip antenna structure is used for the design of passive RFID tag. It examines the specific tag geometry and its characteristics to optimize the PIFA antenna and in turn RFID tag’s performance.

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