State-of-the-art of Metamaterials: Characterization, Realization and Applications

Ruvio, Giuseppe; Leone, Giovanni

doi:10.11114/set.v1i2.456

Cited by 6 publications

(4 citation statements)

References 59 publications

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“…With a 200 µm conductive thickness and accuracy of up to micron, this method showed a possible solution for the future liquid antenna. In [ 205 , 206 ], a 3D printing of LM with a thickness of ~2 µm has shown. The 3D printer has shown an ultra-thin conductive LM with high reliability and repeatability and shows the state-of-the-art among LM antennas.…”

Section: Fabrication Methodsmentioning

confidence: 99%

Recent Advances of Wearable Antennas in Materials, Fabrication Methods, Designs, and Their Applications: State-of-the-Art

et al. 2020

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The demand for wearable technologies has grown tremendously in recent years. Wearable antennas are used for various applications, in many cases within the context of wireless body area networks (WBAN). In WBAN, the presence of the human body poses a significant challenge to the wearable antennas. Specifically, such requirements are required to be considered on a priority basis in the wearable antennas, such as structural deformation, precision, and accuracy in fabrication methods and their size. Various researchers are active in this field and, accordingly, some significant progress has been achieved recently. This article attempts to critically review the wearable antennas especially in light of new materials and fabrication methods, and novel designs, such as miniaturized button antennas and miniaturized single and multi-band antennas, and their unique smart applications in WBAN. Finally, the conclusion has been drawn with respect to some future directions.

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Section: Fabrication Methodsmentioning

confidence: 99%

Recent Advances of Wearable Antennas in Materials, Fabrication Methods, Designs, and Their Applications: State-of-the-Art

et al. 2020

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“…The metamaterials are not available naturally but they are designed to be artificial as discussed in [7]. As described in [6] metamaterials are basically a group of microwave structures designed to exhibit double and single negative permittivity and permeability conditions. With these conditions of 𝜇 and 𝜀 metamaterials can be used to alter or improve the properties of microwave devices such as an antenna.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Microstrip Patch Antenna properties with Split-Ring Resonator Metamaterial as Superstrate at mmWave Frequency

Desai¹,

Bindu.²

2022

IJSRCSEIT

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The Microstrip Patch antenna which is considered as low profile and easy to fabricate antenna incorporates drawbacks that include low gain and bandwidth. Using Metamaterials superstrate both bandwidth and the gain of patch antenna can be enhanced. This paper basically includes the study characteristics of rectangular patch antenna that is fed by microstrip line, with metamaterial as the two layers of superstrate is carried out at mmWave frequency ie 24GHz. The rectangular patch antenna is designed, that resonate at 24GHz, with copper as the radiating material put on Rogger 5880 substrate of 0.5mm thickness. The substrate dimension is taken to be 15mmx 15mm. The metamaterial structure exhibits negative permittivity and permeability at the same frequency as that of rectangular patch antenna ie at 24GHz. The substrate used for SRR structure design is Rogger 5880 of thickness 0.2mm. The unit cell dimension is 1.6mm x 1.6mm and the superstrate layer consists of a 9x9 SRR structure. Rectangular Patch characteristics are studied by placing the single layer and double layer of the superstrate at various distances (in mm). It is observed that placing a double superstrate layer with a gap of 1mm between them was placed at a distance of 1mm from the resonating rectangular patch antenna, making the antenna exhibit a multi-band feature along with an increase in the antenna gain. The Rectangular Patch antenna, SRR structure simulation is carried out in the CST simulation tool. Simulation results show that SRR characteristics are satisfied at 24GHz ie it behaves like a double negative structure and was verified using Matlab. The antenna shows multi-band resonance behavior at 24.033GHz, 25.36GHz, 25.285 GHz, 26.27 GHz when a double layer of 9x9 Split Ring Resonator is added above the radiating element. The gain offered by a single patch was 7.57dB and with the superstrate layer, the gain obtained was 9.01dB. The polarization component along the main lobe direction shows the cross-polarization component is found to be -85dB. The analysis of antenna with and without superstrate shows that there is improvement in gain and the multiband resonance can be achieved.

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“…The progress of frequency selective surfaces was also motivated by the significant improvements in the methods of analysis, from the computing capacity and on the manufacturing technology. Moreover, being FSS part of the broad family of artificial materials (Ruvio& Leone, 2014), new research efforts have been dedicated to this topic.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Characterization of Finite-size Curved Frequency Selective Surfaces

Mattiello¹,

Leone²,

Ruvio³

2015

SET

Self Cite

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Frequency Selective Surfaces (FSSs) are spatial filters that are largely employed in radomes for radars and antennas where high performance is necessary. FSS can be categorised in terms of their frequency behaviour. Band-pass FSS structures are able to let the electromagnetic wave pass in certain frequency ranges and shield others, which are especially suitable for out-of-band stealth of radomes. The properties of frequency selectiveness of these screens are used at microwave and infrared wavelengths. By tuning the electrical size and geometry of the unit-cell (patch or aperture) different frequency behaviours of the structure are generated. Although their analysis and simulation is significantly simplified with the approximation of infinite and planar array, in some real applications FSS are required to be conformal to limited non-planar structures. The literature on the problem of characterizing finite-size and curved FSS has been sparse and more focused on the single application rather than on a unified approach. In the aim of synthesizing valuable techniques, this paper reviews significant research results on truncated and curved FSS which were presented in the dedicated literature.

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State-of-the-art of Metamaterials: Characterization, Realization and Applications

Cited by 6 publications

References 59 publications

Recent Advances of Wearable Antennas in Materials, Fabrication Methods, Designs, and Their Applications: State-of-the-Art

Recent Advances of Wearable Antennas in Materials, Fabrication Methods, Designs, and Their Applications: State-of-the-Art

Design and Analysis of Microstrip Patch Antenna properties with Split-Ring Resonator Metamaterial as Superstrate at mmWave Frequency

Analysis and Characterization of Finite-size Curved Frequency Selective Surfaces

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