Metamaterials: Characteristics, Design and Microwave Applications

Jokanovic, Branka; Geschke, Riana; Beukman, Theunis S.; Milosevic, Vojislav

doi:10.23919/saiee.2010.8531553

Cited by 6 publications

(2 citation statements)

References 37 publications

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“…DNG materials are usually known as left-handed materials (LHM). In LHM, the E, H, and k form a left-handed coordinate system, and hence it supports the backward propagation of waves [19]. The classification of the materials has been demonstrated in ε-µ diagram as observed in Figure 4.…”

Section: Introduction To Metamaterialsmentioning

confidence: 61%

A Review on Metamaterial Application in Microstrip and Substrate Integrated Waveguide Antenna Designs

Bhowmik¹,

Appasani²,

Jha³

et al. 2022

PIER B

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Metamaterials are artificially configured composite materials exhibiting unique characteristics such as negative effective permittivity and permeability. Due to these distinctive characteristics, metamaterials have drawn special attention in designing novel antenna structures and improving antenna performances. The application of metamaterial in antenna technology significantly brings miniaturization to the antenna structure, enhances the impedance bandwidth, gain, and efficiency of the antenna as well as improves isolation between the MIMO antenna elements. The substrate integrated waveguide (SIW) reduces the conductor and dielectric loss, and surface wave excitations in the antennas. Although an overview of the performance enhancement of microstrip patch antennas under the influence of metamaterial has been incorporated in this article, the authors have put more effort in presenting a detailed study on working mechanism of metamaterial-based SIW antennas. Thus, a detailed review of the novel designs of metamaterial-inspired SIW cavity-backed slot antennas (CBSA), leaky-wave antennas (LWA), aperture antennas, and H-plane horn antennas has been included. The theoretical background of the metamaterials characteristics has been presented. Moreover, the working principles of metamaterial-based SIW CBSAs, SIW LWAs, SIW aperture antennas, and SIW H-plane horn antennas have been thoroughly outlined in obtaining antenna miniaturization, gain enhancement, beam steering through frequency scanning, polarization flexibility, bandwidth broadening, and isolation improvement. Besides this, a study has also been included in eliminating the limitations of SIW on-chip antennas such as narrow bandwidth, low gain, and efficiency by including metamaterial/metasurface in the antenna designs. Although the emphasis has been given to elaborating the attractive antenna performances, some design limitations have also been identified, and those need further investigation. This survey brings up not only the conceptual framework of the attractive characteristics of metamaterial, the design methodology of the non-resonant type metamaterial in the SIW environment, and the working principles of metamaterial-inspired SIW antennas but also the design limitations. Thus, consideration can be given to this article as the potential design guidelines of the metamaterial-based SIW antennas, and possible ideas can be obtained for doing further advanced research on the identified research gaps.

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Section: Introduction To Metamaterialsmentioning

confidence: 61%

A Review on Metamaterial Application in Microstrip and Substrate Integrated Waveguide Antenna Designs

Bhowmik¹,

Appasani²,

Jha³

et al. 2022

PIER B

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“…This confirms that metamaterials have changed research. Metamaterials have applications in all of the following fields: acoustics [ 1 ] (sound absorption), bioengineering [ 2 , 3 ] (design of metamaterials or meta-surfaces of phantoms for surgical use), soft robots [ 4 , 5 ] (design of soft robots based on metamaterial structures; development of tunable, programmable, and tethered locomotion), optics [ 6 ] (metamaterials for cloaking), electromagnetism [ 7 ] (resonators and antennas), automotive industry [ 8 ] (design of airbags and MEMS sensors), sports [ 9 ] (shoe support through assistive grips), thermal expansion [ 10 ] (tunable metamaterials for managing thermal expansion), and vibration absorption [ 11 ]. There are a lot of geometries that can be exploited for a wide range of purposes.…”

Section: Introductionmentioning

confidence: 99%

Design of an Optical Device Based on Kirigami Approach

De Giorgi

2024

Materials

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The aim of this work was to design a kirigami-based metamaterial with optical properties. This idea came from the necessity of a study that can improve common camouflage techniques to yield a product that is cheap, light, and easy to manufacture and assemble. The author investigated the possibility of exploiting a rotation to achieve transparency and color changing. One of the most important examples of a kirigami structure is a geometry based on rotating squares, which is a one-degree-of-freedom mechanism. In this study, light polarization and birefringence were exploited to obtain transparency and color-changing properties using two polarizers and common cellophane tape. These elements were assembled with a rotating-square structure that allowed the rotation of a polarizer placed on the structure with respect to a fixed polarizer equipped with cellophane layers.

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