effective permittivity
Effective Permittivity Tensor for a Metal-Dielectric Superlattice
... the effective plasma frequency for periodic arrays of very thin metal wires ...the permittivity components, which can predict both results as well as the crossover between ...the effective medium ...
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Effects of Random Errors Upon Effective Permittivity of a Composite Containing Short Needles
... the effective permittivity of a composite can be found by Maxwell-Garnett mixing rule ...obtained effective permittivity for a regular lattice of needles will be the same as that for a random ...
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A Method for Calculating the Effective Permittivity of a Mixture Solution During a Chemical Reaction by Experimental Results
... effective permittivity can be used to describe the molecular polarization of a mixture during a chemical reaction and consequently be used to calculate the transmission and absorption of microwave in the ...
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Adaptive Neuro-Fuzzy Inference System for the Computation of the Characteristic Impedance and the Effective Permittivity of the Micro-Coplanar Strip Line
... As a consequence, a method based on the ANFIS for computing the effective permittivity and the characteristic impedance of MCS line is presented. The optimal values of premise parameters and consequent parameters ...
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Development Effective Permittivity Algorithm For Conformal Structure In 3D Finite Different Time Domain (FDTD)
... Dalam FDTD terdapat beberapa kaedah lain yang digunakan dalam membina objek, antaranya Perfect Matched Layer PML, Absorbing Boundary Condition ABC, Near Field Far Field NFFF dan Scatteri[r] ...
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Using The Kramers-Kronig Transforms To Retrieve The Conductivity From The Effective Complex Permittivity
... the effective permittivity of dis- persive material it may be of interest to distinguish between conductivity losses (caused by free electrons) and dielec- tric losses (caused by bounded electrons) which ...
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Study of Effective Dielectric Permittivity and Capacitance for Finite Dielectric Thickness Coplanar Waveguide
... At higher frequencies microwave and millimeter wave transmission lines play an important role .Among all transmission lines CPW is rapidly becoming salient substitute due to its uniplanar geometry. In this paper ...
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Decomposition of permittivity contributions from reflectance using mechanism models
... The decomposition of a material’s electromagnetic response into the elementary component mechanisms responsible for observed phenomena is a fundamental problem of spectroscopy. In the setting of nonmagnetic materials, ...
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Microwave processing and permittivity measurement of thermoplastic composites at elevated temperature
... The use of microwave high energy rate joining of FRTP composites has shown promising preliminary results 6,7 and more research is being carried out so that the technology can find its application in manufacturing ...
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Kramers Kronig Relations and the Properties of Conductivity and Permittivity in Heterogeneous Media
... the permittivity as the direct Fourier transform of the permittivity defined in frequency ...the permittivity is first defined in time, while the permittivity in frequency space is given by ...
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A Broadband Complex Permittivity Probe Using Stepped Coaxial Line
... The permittivity of various alcoholic solutions as a function of concentra- tions at 1 GHz and 7 GHz measured by a commercial probe were linear responses, except for some drinks con- taining sugar and some types ...
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Determination of Material Properties like Permittivity and Density with Microwaves
... With increasing permittivity—corresponding to an increasing material density—the curves in Figure 7 are shifted to the left side in accordance with Figure 4. For Figure 5 and Figure 8 a qualitative compliance ...
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Uncertainty Minimization in Permittivity Measurements in Shielded Dielectric Resonators
... an effective method that minimizes the uncertainty in the measurement of the real dielectric permittivity of a ...between permittivity, sample and cavity dimensions, measured resonant frequency and ...
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A Novel Duality Between Permeability and Permittivity in a Concentric Sphere
... The incident plane wave may be described in terms of the sum of spherical waves by using the addition theorem.. The field components in spherical coordinates may be expressed in terms of[r] ...
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Design Of Planar Microwave Sensor To Detect Permittivity Of Unknown Material
... Lately, complementary split ring resonator (CSRR) have been use in resonant sensor to characterize the dielectric constant of the material under test [6]. There are many advantages such as the low cost manufacturing, ...
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Obstacle-based self-calibration techniques for the determination of the permittivity of liquids
... needed whereas for the 2-state-multiple-N-method a second obstacle with different characteristics is needed. This can be realized by choosing obstacle materials with different per- mittivities. However, for these two ...
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Permittivity Measurements of Biological Samples by an Open-Ended Coaxial Line
... The goal of this work is to describe practical data acquisition and data analysis methods that can be used to reliably characterize the electrical properties of materials having appreciable dc conductivity. All ...
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Determining Real Permittivity from Fresnel Coefficients in GNSS-R
... In GNSS-R for soil moisture applications, one essentially needs to determine the permittivity ε of the soil from the Fresnel coefficients. For non-dispersive soil, ε can be assumed real. In the literature, ε is ...
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Application of Transmission/Reflection Method for Permittivity Measurement in Coal Desulfurization
... Abstract—In recent years, the transmission/reflection (TR) method has been successfully employed to determine the complex permittivity of dielectric material. Based on the principle that different coals have ...
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Effects of Substrate Permittivity on Planar Inverted-F Antenna Performances
... The resonant frequency and the gain of a PIFA are simulated with the substrate permittivity varying from 1 to 12.9. When the antenna dimensions are kept constant, the normalized simulated resonant frequencies ...
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