Magnetically Tuned Two-Component Microwave Metamaterial

Shulga, S.

doi:10.2528/pierm17020208

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…The characteristics of metamaterials have a relative constant (permittivity) from the ratio between the electrostatic density of the material by the electric field to the vacuum state [7]. The characteristics of metamaterials also have other relative constants (permeability) from the comparison between the magnetic response of the material by the magnetic field [8]. The permittivity and permeability can be calculated using Equations ( 3) and (4) of the following NRW model [2]:…”

Section: Design and Characterizationmentioning

confidence: 99%

Optimization of Semiconductor-Based SRR Metamaterials as Sensors

Soerbakti,

Saktioto,

Sulistyo Rini

et al. 2024

J. Phys.: Conf. Ser.

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The development of hybrid sensor media is needed to achieve more efficient, sensitive, and accurate performance. Efforts to modify the structure of conventional metamaterials are carried out by integrating semiconductor materials which aim to improve the characteristics of optical properties, electrical properties, and sensitivity as sensors. This study aims to analyze and investigate changes in the optical properties of semiconductor-based metamaterials. The research was conducted through simulation and numerical methods to design and characterize the SRR metamaterial geometry, with a modified Nicolson-Ross-Weir approach, especially the optical parameters of refractive index. The single-cell square pattern SRR metamaterial geometry with a ring radius of 2.2 – 2.8 mm on quartz glass substrate designed at a smaller wavelength based on a maximum frequency source of 9 GHz. The square SRR metamaterial is integrated with several semiconductor materials such as silicon (Si), gallium arsenide (GaAs), and aluminum nitride (AlN). Changes in radius size cause a redshift with respect to radius enlargement. The increasing ring radius of SRR causes a higher resonance depth of the refractive index. Combining hybrid semiconductors with metamaterial results in more negative metamaterial properties as the refractive index becomes larger and negative. The addition of semiconductor material to the metamaterial substrate causes a negative refractive index to shift to a lower frequency.

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Section: Design and Characterizationmentioning

confidence: 99%

Optimization of Semiconductor-Based SRR Metamaterials as Sensors

Soerbakti,

Saktioto,

Sulistyo Rini

et al. 2024

J. Phys.: Conf. Ser.

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“…This terahertz MTM exhibits tunable characteristics to adjust resonances with the manipulation of switching windows 13 . A magnetically tuned metamaterial is presented in 14 , in which isotopic dielectric ferric cylinders are periodically hosted. These ferric rods are partially magnetized by applying a dc voltage that makes the real part of the magnetic field varying negative to positive values.…”

Section: Introductionmentioning

confidence: 99%

Symmetric resonator based tunable epsilon negative near zero index metamaterial with high effective medium ratio for multiband wireless applications

Moniruzzaman

Islam

Hossain

et al. 2021

Sci Rep

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In this paper, a tuned metamaterial (MTM) consisting of a symmetric split ring resonator is presented that exhibits epsilon negative (ENG), near zero permeability and refractive index properties for multiband microwave applications. The proposed metamaterial is constituted on a Rogers (RT-5880) substrate with 1.57 mm thickness and the electrical dimension of 0.14λ × 0.14λ, where wavelength, λ is calculated at 4.2 GHz. The symmetric resonating patch is subdivided into four equal and similar quartiles with two interconnecting split rings in each quartile. The quartiles are connected at the center of the substrate with a square metal strip with which four tuning metal strips are attached. These tuning metal strips are acted as spacers between four quartiles of the resonator patch. Numerical simulation of the proposed design is executed in CST microwave studio. The proposed MTM provides four resonances of transmission coefficient (S21) at 4.20 GHz, 10.14 GHz, 13.15 GHz, and 17.1 GHz covering C, X and Ku bands with negative permittivity, near zero permeability and refractive index. The calculated effective medium ratio (EMR) is 7.14 at 4.2 GHz indicates its compactness. The resonance frequencies are selective in nature which can be easily tuned by varying the length of the tuning metal stubs. The equivalent circuit of the proposed MTM is modelled in Advanced Design Software (ADS) that exhibits a similar S21 compared with CST simulation. Surface current, electric and magnetic fields are analyzed to explain the frequency tuning property and other performances of the MTM. Compact size, ENG with near zero permeability and refractive index along with frequency selectivity through tuning provides flexibility for frequency selective applications of this MTM in wireless communications.

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Generalized broad-band Effective Medium Theory of two-component metamaterials including magnetic ones: a review

Rybin

Shulga

2020

Journal of Electromagnetic Waves and Applications

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Magnetically Tuned Two-Component Microwave Metamaterial

Cited by 3 publications

References 12 publications

Optimization of Semiconductor-Based SRR Metamaterials as Sensors

Optimization of Semiconductor-Based SRR Metamaterials as Sensors

Symmetric resonator based tunable epsilon negative near zero index metamaterial with high effective medium ratio for multiband wireless applications

Generalized broad-band Effective Medium Theory of two-component metamaterials including magnetic ones: a review

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