Results 161 to 170 of about 1,136 (204)
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A narrowband chipless multiresonator tag for UHF RFID
Journal of Electromagnetic Waves and Applications, 2013In this work, a narrowband fully passive printable RFID chipless tag, working in the UHF band, is presented. The tag consists of two cross-polarized transmitting and receiving microstrip broadband circular monopole antennas, loaded with multiple cascaded resonators, each one unambiguously corresponding to one data bit.
CASULA, GIOVANNI ANDREA +3 more
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Chipless RFID Tags: Co- or Cross-Polar Tag?
2019 IEEE Asia-Pacific Microwave Conference (APMC), 2019This paper provides a comparison between two types of co- and cross-polar frequency-coded chipless RFID tags considering their electrical parameters. These parameters are the level of radar cross section (RCS), data capacity, rotation sensitivity, and resistant to interferences. A brief description of each parameter is given.
Parya Fathi +5 more
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Circular polarization on depolarizing chipless RFID tags
2016 IEEE Radio and Wireless Symposium (RWS), 2016We propose a new chipless RFID scheme that relies on circularly polarized waves to provide an alignment-independent chipless RFID solution. This approach not only increases the readability of the tags, but also incorporates depolarization capability, reducing the interference effects produced by changes in the environment.
Marcos Martinez, Daniel W. van der Weide
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Compact Polarizer Chipless RFID Tag
2020 4th Australian Microwave Symposium (AMS), 2020A compact one-quarter ring resonator as the building block of the polarizer chipless tags is proposed, and the operating principle and main design parameters are explained. Based on the proposed resonator, a chipless tag with 19 bits of data within 4.6–7.7 GHz frequency band is fabricated, and data capacity of better than 1.55 $\frac{bits}{cm^2}$ is ...
Mohammadali Forouzandeh, Nemai Karmakar
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Chipless RFID tag with integrated sensor
2010 IEEE Sensors, 2010A chipless tag based on multiresonators with integrated temperature sensor is presented. The tag consists of a UWB monopole antenna loaded with multiple cascaded spiral EBGs which have a 1∶1 correspondence with data bits. The data bits are encoded into the spectrum hence the tag has a unique spectral signature. The chipless tag is less sensitive to tag
Stevan Preradovic, Nemai Karmakar
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Improved chipless tag based on multifilters
Microwave and Optical Technology Letters, 2017AbstractIn this study, a novel compact chipless RFID transponder is presented. The coding information is based on spectral signature using three types of multiresonator: spiral, slot, and U‐shaped defected ground structure (DGS). Each resonator can be seen as a band‐stop filter which contributes to a particular resonance frequency.
Yi‐Zhan Ni +2 more
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Embedded Singularity Chipless RFID Tags
IEEE Transactions on Antennas and Propagation, 2011Every structure scatters an impulse plane wave in a unique fashion. The structural information of an object can be extracted by analyzing the late-time scattered field as the impulse-response of the structure. The late-time scattered field, which represents the source-free response of the structure, contains a summation of damped sinusoids.
Andrew T. Blischak, Majid Manteghi
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High-density compact chipless RFID tag for item-level tagging
2018 International Applied Computational Electromagnetics Society Symposium (ACES), 2018This paper presents 36-bit compact passive chipless RFID tag. The bowtie shape based tag structure is loaded with 36 slots. The tag is capable of yielding high data density. The overall tag dimension is 27mm × 26mm. The tag structure is optimized and analyzed for three different substrates, i.e., FR-4, Taconic TLX-0, and Rogers RT5880. Each loaded slot
Ayesha Habib +3 more
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Chipless RFID tag for light sensing
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2014A fully passive chipless RFID tag with light sensing capabilities is presented for low-cost, maintenance-free applications. This paper describes the steps towards developing a prototype of passive light sensor using off the shelf photoresistors. Results show a single microwave resonator has 60 MHz frequency shift and 7.5 dB power variation for 0 to ...
Emran Md Amin +3 more
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Identification of Chipless RFID Tags in the Reader
2014The signal received by the antenna includes the scattered signal from the chipless RFID tag located in the reader area, reflections from background objects (clutter), and noise. Therefore, the detection process is a challenging aspect in the design of chipless RFID systems.
Reza Rezaiesarlak, Majid Manteghi
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