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6 articles for “permittivity and conductivity”
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Investigation of the Electrical Properties of a Forest and Its Impact on Radio Wave Propagations
Abstract: There are two important parameters that represent the forest electrical properties. They are permittivity, Ԑr and conductivity, δ of the forest. These parameters were observed to affect the radio wave propagation in forest. The study of radio wave propagation in forested environment becomes necessary since radio communication is propagated by electromagnetic wave (EMW) travelling through different environments, The main objective of this research was to investigate a simulated model for …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 2, 2024 · pp. 18–25 Read article
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Review And Analysis of Application of Conductive Polymer Composites in Power-Efficient RF Circuits For 5G PAPR Reduction
Abstract: The need for low power RF circuits has gained more importance in the background of fifth-generation (5G) wireless communication systems, since the inherent PAPR characteristic of 5G signals—especially when using orthogonal frequency division multiplexing (OFDM) based techniques—becomes high. This high PAPR limits the efficiency of RF power amplifiers, increases power consumption, and induces thermal management challenges. In this context, conductive polymer composites (CPCs), based on advanced polymer matrices integrated with …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 111–125 Read article
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Structure Property Correlation of Polymer Dielectrics Using Electrical Response Data
Abstract: Polymer dielectrics are foundational to insulation, capacitors, embedded passives, and flexible electronics, where performance is governed by the frequency-dependent electrical response rather than a single dielectric constant. This study presents a spectroscopy-aware structure–property correlation framework that transforms dielectric response data into physically interpretable spectral fingerprints and learns mappings from polymer descriptors to these fingerprints for prediction and interpretation. Broadband spectra are standardized on a log-frequency grid and parameterized using relaxation-informed …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 315–324 Read article
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Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites
Abstract: In this work, two systems of the composite were prepared using NiCoFe and NiZnFe with reduced graphene oxide(rGO) epoxy and the samples were subjected to electrochemical impedance spectroscopy (EIS). The Quality factor and loss tangent values of the composite was found out as a function of frequency. The modified ferrite-graphene-epoxy blends show dielectric loss and Quality factor values at low frequency. The incorporation of graphene aims to improve electrical conductivity, …
Published in Journal of Polymer & Composites · Vol. 11, Issue 11, 2023 · pp. 28–37 Read article
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Behavior of Surface Polaritons on Cylindrical Semiconducting Materials at Nanoscale with Radius Dependence Frequency
Abstract: Surface plasmon resonance (SPR) is a physical property of the surface to investigate the important properties of optical behaviors for nanomaterial and biomaterial. It involves the excitation of electrons within a thin metal sheet by incident light at a specific angle, prompting them to propagate parallel to the surface. This sensitivity to external factors, such as changes in the refractive index of the surrounding medium due to molecular adsorption, underscores …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 2, 2024 · pp. 1–7 Read article
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Investigation of Dielectric Properties of Lead-Free BaTiO3 Ceramic at Different Sintering Temperatures
Abstract: In the present study, Barium titanate (BaTiO3) was produced using the conventional solid-state sintering technique at three distinct sintering temperatures: 1000, 1100, and 1200°C. It was confirmed by the X-ray diffraction pattern that the perovskite phase was formed without secondary peaks and that the presence of the tetragonal phase was observed near room temperature. Upon conducting a frequency- dependent dielectric study, it was found that ceramic sintered at 1100°C exhibited …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 23–30 Read article