Microstrip Line Impedance Matching Using ENZ Metamaterials, Design, and Application

Khaleghi, Seyed Saleh Mousavi; Moradi, Gholamreza; Shirazi, Reza Sarraf; Jafargholi, Amir

doi:10.1109/tap.2019.2891442

Cited by 14 publications

(3 citation statements)

References 9 publications

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“…From the properties of the Fourier transform, we obtain the explicit form of the integrand function in (15)…”

Section: Application Of the Methods Of Moments To Determine The Curre...mentioning

confidence: 99%

Mutual Impedance of Antennas Placed on a Multilayer Dielectric

Wnuk

2023

Preprint

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The paper presents a method for determining the mutual impedance of two dipoles located on a multilayer dielectric structure. Determining the mutual impedance of linear antennas is a complex issue and we are unable to obtain an exact solution, it is influenced by many elements (location, dimensions, electrical parameters of the earth, thickness of the substrate, thickness and antenna conductivity, etc.) In the case of antennas on a dielectric substrate, the coupling analysis is even more complicated, because the operation of these antennas is significantly influenced by the occurrence of surface waves conducted through an open dielectric structure. The problem was solved by the method of moments using the Galerkin method as its special case. The work uses a method developed by Richmond for obtaining the elements of the impedance matrix, based on the concept of reaction between sections of the base and testing functions. Their mutual interaction was described by the reaction of the electric field caused by the current flowing through one dipole with the current flowing through the other dipole. Based on this analysis, the mutual impedance of two arbitrarily oriented dipoles located on a multilayer dielectric was determined, where the current distribution and antenna lengths are arbitrary. A computer program was developed that allowed to determine the mutual impedance for freely oriented dipoles.

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“…From the properties of the Fourier transform, we obtain the explicit form of the integrand function in (15)…”

Section: Application Of the Methods Of Moments To Determine The Curre...mentioning

confidence: 99%

Mutual Impedance of Antennas Placed on a Multilayer Dielectric

Wnuk

2023

Preprint

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“…where Fm and Fn are the Fourier transforms of the basis and test functions, respectively. This integral is calculated numerically, but it is the most time-consuming process due to the slow convergence of the integral [15,16]. Slow convergence is caused by the fact that the singularities of the integral in the spatial domain have been removed by converting the domain to a spectral one and have become "scattered" in this domain.…”

Section: Distribution Coefficients Generalized Impedance Zmnmentioning

confidence: 99%

Antenna Array on a Multilayer Dielectric Structure as a Nanostructure

Wnuk

2024

Preprint

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The surface impedance of the multilayer dielectric structure was determined. Based on the boundary conditions, a method for determining the surface impedance of a layered structure with a perfectly conductive screen and or a magnetic screen is presented. The resonance conditions and the conditions for the excitation of surface waves are derived. The integral expression defining the generalized impedance was analyzed with a view to adapting it to numerical implementation. This allowed the development of a computer program based on which calculations were made of the effect of excitation of waves on multilayer dielectric substrates.

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“…57) where Fm and Fn are the Fourier transforms of the basis and test functions, respectively. This integral is calculated numerically, but it is the most time-consuming process due to the slow convergence of the integral [15,16]. Slow convergence is caused by the fact that the singularities of the integral in the spatial domain have been removed by converting the domain to a spectral one and…”

mentioning

confidence: 99%

Antenna Array on a Multilayer Dielectric Structure as a Nanostructure<strong> </strong>

Wnuk

2024

Preprint

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The work contains a detailed analysis of the electromagnetic field originating from a point source placed above the layered structure.The surface impedance of the multilayer dielectric structure was determined. Based on the boundary conditions, a method for determining the surface impedance of a layered structure with a perfectly conductive screen and or a magnetic screen is presented. The resonance conditions and the conditions for the excitation of surface waves are derived. The integral expression defining the generalized impedance was analyzed with a view to adapting it to numerical implementation. This allowed the development of a computer program based on which calculations were made of the effect of excitation of waves on multilayer dielectric substrates.

show abstract

Microstrip Line Impedance Matching Using ENZ Metamaterials, Design, and Application

Cited by 14 publications

References 9 publications

Mutual Impedance of Antennas Placed on a Multilayer Dielectric

Mutual Impedance of Antennas Placed on a Multilayer Dielectric

Antenna Array on a Multilayer Dielectric Structure as a Nanostructure

Antenna Array on a Multilayer Dielectric Structure as a Nanostructure<strong> </strong>

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