Novel Concentric Hexagonal-Shaped RFID Tag Antenna With T-Shaped Stub Matching

Alibakhshikenari, Mohammad; Virdee, Bal S.; Althuwayb, Ayman A.; Xu, Kai‐Da; See, Chan Hwang; Khan, Salah Ud‐Din; Falcone, Francisco; Limiti, Ernesto

doi:10.1109/jrfid.2021.3124966

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…The variety of RFID tag antennas and filters is quite diverse, and promising ideas can be found among different antenna types [14,15]. Specifically, various configurations of monopole antennas are introduced for RFID tag applications in the literature [16][17][18], but many of them do not provide enough bandwidth or directivity and also are not easy to assemble for smart home applications.…”

Section: Introductionmentioning

confidence: 99%

Folded Narrow-Band and Wide-Band Monopole Antennas with In-Plane and Vertical Grounds for Wireless Sensor Nodes in Smart Home IoT Applications

Honari,

Javadi,

Mirzavand

2024

Electronics

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This article presents two monopole antennas with an endfire radiation pattern in the UHF band that can be installed on dry walls or metallic cabinets as a part of wireless sensor nodes, making them a suitable choice for smart home applications, such as the wireless remote control of house appliances. Two different antennas are proposed to cover the RFID bands of North America (902–928 MHz) and worldwide (860–960 MHz). The antennas have wide horizontal radiation patterns that provide great reading coverage in their communication with a base station placed at a certain distance from the antennas. The structures have two ground planes, one in-plane and the other vertical. The vertical ground helps the antenna to have a directive radiation and also makes it easily installed on walls. The antenna feeding line lies over the vertical ground substrate. The maximum dimensions of the narrow-band antenna are L × W = 0.3λ × 0.14λ, and those for the wide-band antenna are L × W = 0.39λ × 0.14λ. The measured results show that the bandwidth of the proposed antennas for the North America and worldwide RFID bands are from 902 MHz to 939 MHz and 822 MHz to 961 MHz, with maximum gains of 4.2 dBi and 4.9 dBi, respectively.

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Section: Introductionmentioning

confidence: 99%

Folded Narrow-Band and Wide-Band Monopole Antennas with In-Plane and Vertical Grounds for Wireless Sensor Nodes in Smart Home IoT Applications

Honari,

Javadi,

Mirzavand

2024

Electronics

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“…They come in various types, shapes, and sizes and are designed to operate at specific frequency ranges. RFID tag antennas can be designed for a specific frequency range such as ultrahigh frequency (UHF) [7], [8]. In an RFID tag, an antenna receives and transmits signals, and chip codes and decodes received signals.…”

Section: Introductionmentioning

confidence: 99%

Innovative Decentralized Configuration Design of Chipless RFID Tag: Toward a Cost-Effective and Efficient Code Density

Abdullah

Riaz

2023

IEEE Access

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In this article, a compact chipless RFID tag with a small size and high data density is proposed. The tag consists of nested octagonal loops arranged in a concentric configuration. Each two neighboring resonating elements are decentrally coupled by two connector lines at obverse sides. The small size of the tag is achieved through embedding multiple octagonal elements in a nested arrangement, which share the same side, and through connecting the neighboring elements. The tag configuration is designed and optimized to improve the resonating modes with respect to the number of resonating elements. The number of generated resonating modes (N) is mathematically obtained by N= 2n-1, such (n) is the resonating elements number. An 11-bits data capacity is presented in the proposed tag within a physical dimension of 10 × 10 mm 2 , resulting high data density of 11 b/cm 2 . The proposed tag is realized on Rogers RT/Duroid 5880 substrate having substrate height h=0.508 mm, relative permittivity ϵ r = 2.2, and loss tangent δ = 0.0009. The proposed tag is designed and simulated using CST Studio Suite®. The tag's performance is initially evaluated through simulation and analyzed for effectiveness. The tag is then fabricated and measured, and the results are compared to ensure agreement between simulation and measurement. The tag advantages are compact size, high data density, and improved resonating modes. The operating frequency range of the proposed tag is 7.5 GHz-15 GHz.

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“…Fractals refer to segments that are broken or uneven and feature self-similarity or self-affinity within their geometrical structure [7]. For multiband operation, many fractal antenna approaches (Minkowski [8], [9], Sierpinski [10], Hilbert curves [11], fractal tree antennas [12], [13], Cantor [14], shaped fractals [15]- [18], slotted antenna [19], [20], and koch curves [21]) have been proposed in the literature. A small, miniature star fractal antenna for wireless applications with a gain that can approach 4.85 dB was described by Nejdi et al [22].…”

Section: Introductionmentioning

confidence: 99%

A new printed multiband fractal triangular antenna for wireless application

Marzouk,

Rhazi,

Nejdi

et al. 2023

TELKOMNIKA

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This letter investigates the properties of a novel multi-band fractal antenna with a triangular geometry that can expand its bandwidth, provide multiband functionality, and enable the best smart antenna technology. The antenna employs an FR4 as support with dimensions of 75×75 mm 2 and a thickness of 1.6 mm. A microstrip line with an impedance of 50 ohms feeds the patch. The high-frequency structure simulator (HFSS) is applied to develop and simulate the patch. The vector network analyzer AVR ROHDE and SCHWARZ ZVB20 carried out the experimental tests of the prototype antenna. The suggested antenna's simulation results show that it runs on five main frequency bands: 1.840 GHz, 2.770 GHz, 2.940 GHz, 4.330 GHz, and 5.790 GHz, with a high gain that can exceed 6.01dB and an efficiency of 82%. In the operational bands, the voltage standing wave ratio (VSWR) is between one and two. The results from the simulation and the experiment are extremely similar.

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Novel Concentric Hexagonal-Shaped RFID Tag Antenna With T-Shaped Stub Matching

Cited by 10 publications

References 29 publications

Folded Narrow-Band and Wide-Band Monopole Antennas with In-Plane and Vertical Grounds for Wireless Sensor Nodes in Smart Home IoT Applications

Folded Narrow-Band and Wide-Band Monopole Antennas with In-Plane and Vertical Grounds for Wireless Sensor Nodes in Smart Home IoT Applications

Innovative Decentralized Configuration Design of Chipless RFID Tag: Toward a Cost-Effective and Efficient Code Density

A new printed multiband fractal triangular antenna for wireless application

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