A Novel Gain-Enhanced Antenna With Metamaterial Planar Lens for Long-Range Uhf Rfid Applications

Moreira, Edmilson Carneiro; Martins, Rodrigo O.; Ribeiro, Bruno M. S.; Sombra, and Antônio Sergio Bezer

doi:10.2528/pierb19081501

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…The array antenna spherical waves enter the lens and convert to the planar ones at its output. In addition, the performance of MPA was enhanced in terms of the gain [147], gain and size [148], gain and efficiency [149], and gain and isolation [150]. Gupta et al [151] used the square Minkowski fractal-shaped MTM for focusing the radiation and enhancing MPA gain by 2.9 dB at 11.4 GHz.…”

Section: ) Mtm Lens Based On Nrimentioning

confidence: 99%

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

2022

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Metamaterials (MTMs) are artificially engineered materials with unique electromagnetic properties not occurring in natural materials. MTMs have gained considerable attention owing to their exotic electromagnetic characteristics such as negative permittivity and permeability, thereby a negative refraction index. These extraordinary properties enable many practical applications such as super-lenses, and cloaking technology, and are used to design different electromagnetic devices like filters, polarization converters, sensors, and absorbers. Advances in MTMs have made new application fields to emerge in communication subsystems, especially in the field of antennas. MTMs are usually arranged in front or above the radiating element, or incorporated in the same substrate to improve the performance of planar antennas, in terms of improving directivity, gain, bandwidth, and efficiency, reducing the size and mutual coupling, and deflecting the radiation characteristics. High gain antennas are demanded in modern wireless communication systems. Their importance is in improving the signal strength by reducing the interference and alleviating the free space path loss. This review paper provides a brief introduction to MTMs, with the focus on their operating principles. Furthermore, a detailed study of antenna gain enhancement based on the various properties of MTMs is carried out. MTMs with low values of constitutive parameters; zero-index material (ZIM), lowindex material (LIM), epsilon-near-zero (ENZ), and mu-near-zero (MNZ) are discussed in detail in the context of their capability to enhance the gain of a broad class of planar antennas. The low impedance property and lensing property, which is achieved by three different characteristics: high refractive index (HRI), gradient refractive index (GRIN), and negative refractive index (NRI) materials, are loaded to planar antennas for gain enhancement. The scope of this review has been limited to antennas that were experimentally validated in the respective source papers.INDEX TERMS Metamaterials (MTMs), gain enhancement, low impedance MTM, MTM lens, planar antennas, ZIM.

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Section: ) Mtm Lens Based On Nrimentioning

confidence: 99%

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

2022

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“…With respect to the specific application to RFID systems, metamaterials have been reported to improve the read range and serve to confine the read area to mitigate undesired communication beyond the expected read area. However, in contrast to the focus on near-field RFID herein, metamaterials have most commonly been applied to far-field-based RFID systems 32 – 34 .…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-enhanced near-field readout platform for passive microsensor tags

Duan

Zhao

et al. 2022

Microsyst Nanoeng

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Radiofrequency identification (RFID), particularly passive RFID, is extensively employed in industrial applications to track and trace products, assets, and material flows. The ongoing trend toward increasingly miniaturized RFID sensor tags is likely to continue as technology advances, although miniaturization presents a challenge with regard to the communication coverage area. Recently, efforts in applying metamaterials in RFID technology to increase power transfer efficiency through their unique capacity for electromagnetic wave manipulation have been reported. In particular, metamaterials are being increasingly applied in far-field RFID system applications. Here, we report the development of a magnetic metamaterial and local field enhancement package enabling a marked boost in near-field magnetic strength, ultimately yielding a dramatic increase in the power transfer efficiency between reader and tag antennas. The application of the proposed magnetic metamaterial and local field enhancement package to near-field RFID technology, by offering high power transfer efficiency and a larger communication coverage area, yields new opportunities in the rapidly emerging Internet of Things (IoT) era.

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“…A low-profile left-handed metamaterial based multiband antenna for wireless application is proposed in [4]. Another high gain metamaterial antenna for long range radio frequency identification (RFID) applications has been reported in [5]. In [6], an AMC planar antenna is introduced with 43.3% SAR reduction.…”

Section: Introductionmentioning

confidence: 99%

Design of Dual-Band Conformal Amc Integrated Antenna for Sar Reduction in Wban

Hazarika¹,

Basu²,

Nandi³

2021

PIER C

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A wearable, miniaturized, dual-band, Artificial Magnetic Conductor (AMC) integrated antenna operating on ISM band (2.38-2.47 GHz) and WLAN band (5.11-5.31 GHz) is proposed for Wireless Body Area Network (WBAN). A dumbbell shaped unit-cell is designed to achieve zero reflection phase and modified material characteristics. When 2 × 2 array of dumbbell shaped AMC is put underneath the monopole, the antenna gain increases up to 9.5 dB and 8.1 dB at 2.43 GHz and 5.2 GHz, respectively. Different bending conditions have been considered to confirm the robustness of the AMC antenna. Debye model is used to approximate the dielectric properties within phantom tissue model. Antenna shields most of the backward radiation and reduces the specific absorption rate (SAR) of the integrated antenna by more than 95% in 1-g of phantom hand tissues at both the frequencies. The acquired results exhibit that the AMC antenna is more secure for on body applications.

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A Novel Gain-Enhanced Antenna With Metamaterial Planar Lens for Long-Range Uhf Rfid Applications

Cited by 6 publications

References 21 publications

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

Overview of Planar Antenna Loading Metamaterials for Gain Performance Enhancement: The Two Decades of Progress

Metamaterial-enhanced near-field readout platform for passive microsensor tags

Design of Dual-Band Conformal Amc Integrated Antenna for Sar Reduction in Wban

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