Abstract:Low-cost and flexible radio frequency identification (RFID) tag for automatic identification, tracking, and monitoring of blood products is in great demand by the healthcare industry. A robust performance to meet security and traceability requirements in the different blood sample collection and analysis centers is also required. In this paper, a novel low-cost and flexible passive RFID tag is presented for blood sample collection tubes. The tag antenna is based on two compact symmetrical capacitive structures… Show more
“…Read Range Antenna s Area . (6) The performance of the proposed tag is compared to state-of-art RFID antennas and tags in Table 2. It can be observed that the proposed antenna achieves the highest FoM due to its compact size, while not compromising on the read range.…”
Section: Fom =mentioning
confidence: 99%
“…Radio Frequency Identification (RFID) has been widely adopted as a communication and identification standard for low-cost distributed IoT systems [3][4][5][6][7]. UHF RFID, utilizing impedance-matched radiative antennas and passive RFID integrated circuits (ICs) enables read-range ranges in excess of few meters [3].…”
This paper details the design, fabrication and testing of flexible textile-concealed Radio Frequency Identification (RFID) tags for wearable applications in a smart city/smart building environment. The proposed tag designs aim to reduce the overall footprint, enabling textile integration whilst maintaining the read range. The proposed RFID filament is less than 3.5 mm in width and 100 mm in length. The tag is based on an electrically small (0.0033 λ 2 ) high-impedance planar dipole antenna with a tuning loop, maintaining a reflection coefficient less than −21 dB at 915 MHz, when matched to a commercial RFID chip mounted alongside the antenna. The antenna strip and the RFID chip are then encapsulated and integrated in a standard woven textile for wearable applications. The flexible antenna filament demonstrates a 1.8 dBi gain which shows a close agreement with the analytically calculated and numerically simulated gains. The range of the fabricated tags has been measured and a maximum read range of 8.2 m was recorded at 868 MHz Moreover, the tag’s maximum calculated range at 915 MHz is 18 m, which is much longer than the commercially available laundry tags of larger length and width, such as Invengo RFID tags. The reliability of the proposed RFID tags has been investigated using a series of tests replicating textile-based use case scenarios which demonstrates its suitability for practical deployment. Washing tests have shown that the textile-integrated encapsulated tags can be read after over 32 washing cycles, and that multiple tags can be read simultaneously while being washed.
“…Read Range Antenna s Area . (6) The performance of the proposed tag is compared to state-of-art RFID antennas and tags in Table 2. It can be observed that the proposed antenna achieves the highest FoM due to its compact size, while not compromising on the read range.…”
Section: Fom =mentioning
confidence: 99%
“…Radio Frequency Identification (RFID) has been widely adopted as a communication and identification standard for low-cost distributed IoT systems [3][4][5][6][7]. UHF RFID, utilizing impedance-matched radiative antennas and passive RFID integrated circuits (ICs) enables read-range ranges in excess of few meters [3].…”
This paper details the design, fabrication and testing of flexible textile-concealed Radio Frequency Identification (RFID) tags for wearable applications in a smart city/smart building environment. The proposed tag designs aim to reduce the overall footprint, enabling textile integration whilst maintaining the read range. The proposed RFID filament is less than 3.5 mm in width and 100 mm in length. The tag is based on an electrically small (0.0033 λ 2 ) high-impedance planar dipole antenna with a tuning loop, maintaining a reflection coefficient less than −21 dB at 915 MHz, when matched to a commercial RFID chip mounted alongside the antenna. The antenna strip and the RFID chip are then encapsulated and integrated in a standard woven textile for wearable applications. The flexible antenna filament demonstrates a 1.8 dBi gain which shows a close agreement with the analytically calculated and numerically simulated gains. The range of the fabricated tags has been measured and a maximum read range of 8.2 m was recorded at 868 MHz Moreover, the tag’s maximum calculated range at 915 MHz is 18 m, which is much longer than the commercially available laundry tags of larger length and width, such as Invengo RFID tags. The reliability of the proposed RFID tags has been investigated using a series of tests replicating textile-based use case scenarios which demonstrates its suitability for practical deployment. Washing tests have shown that the textile-integrated encapsulated tags can be read after over 32 washing cycles, and that multiple tags can be read simultaneously while being washed.
“…Various flexible wearable antenna sensors are implemented on different types of materials such as Kapton polyimide [ 92 ], cellulose filter paper [ 93 ], polydimethylsiloxane (PDMS) film [ 94 ], and graphene film (FGF) [ 95 ]. These materials are being applied as promising candidates for innovative flexible antenna sensors.…”
This review paper summarizes various approaches developed in the literature for antenna sensors with an emphasis on flexible solutions. The survey helps to recognize the limitations and advantages of this technology. Furthermore, it offers an overview of the main points for the development and design of flexible antenna sensors from the selection of the materials to the framing of the antenna including the different scenario applications. With regard to wearable antenna sensors deployment, a review of the textile materials that have been employed is also presented. Several examples related to human body applications of flexible antenna sensors such as the detection of NaCl and sugar solutions, blood and bodily variables such as temperature, strain, and finger postures are also presented. Future investigation directions and research challenges are proposed.
“…Many radio frequency identification (RFID) tag antennas for ultra‐high frequency (UHF) band have been designed in the previous work 1‐5 . With these designs, some of the tag antennas can be mounted on metallic surfaces directly, 6,7 other reported designs can work on the human body, organs, blood bag and water‐filled containers 8‐11 . Some designs can be attached to a variety of object surfaces that have the multi‐usage function, as reported in Reference 12.…”
Section: Introductionmentioning
confidence: 99%
“…containers. [8][9][10][11] Some designs can be attached to a variety of object surfaces that have the multi-usage function, as reported in Reference 12. Besides, due to restriction on the available bands for UHF RFID in different countries and regions, some dual-band [13][14][15] or wideband [16][17][18] tag antennas have been designed.…”
A circular tag antenna for the ultra-high frequency radio frequency identification band, with an outer radius of 25 mm is proposed. The proposed design consists of a loop radiation element, two symmetrical microstrip feed lines, resonant rings, and resonant arms. Simulation and measurement results show that the proposed antenna can operate steadily in free space, and on the surface of the human body, water-filled container, and metal along with good conjugate impedance matching. The maximum measured reading range of 3.6 to 6.9 m can be achieved depending on the background. Utilizing a matching circuit, parallel combination of an inductor and capacitor at the feeding port, a point frequency working state at any frequency can be realized. Consequently, it can be used as a frequency signature chipless tag with coding capability. K E Y W O R D S chipless, coding, multi-usage, RFID, tag antenna 1 | INTRODUCTION Many radio frequency identification (RFID) tag antennas for ultra-high frequency (UHF) band have been designed in the previous work. 1-5 With these designs, some of the tag antennas can be mounted on metallic surfaces directly, 6,7 other reported designs can work on the human body, organs, blood bag and water-filled
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