The effect of a concentration-dependent relative static permittivity (RSP) and viscosity on the predictions equivalent conductivity models is studied. full version simplified mean spherical approximation along with four Debye-Hückel-Onsager (DHO) based are used to predict nine 1:1 aqueous electrolyte solutions at 25°C. Three DHO have been developed in this study by combining electrophoretic rel...

The Modified Debye Model (MDM) parameters for five metals are presented. A nonlinear optimization algorithm has been developed in order to extract the parameters for the metals. The extracted parameters have been used to determine the complex relative permittivity of the metals in optical and near-IR region of electromagnetic spectrum. The obtained results have been compared with the experiment...

This paper describes the design of H and T-Slotted Rectangular Microstrip Patch Antennas (RMPA) which resonates at a frequency of fo = 2. 4 GHz. The FR4 glass Epoxy with relative permittivity 4. 4 and height 1. 6 mm is used as substrate material. Antenna is fed by coaxial probe feed and simulated using HFSS. This antenna used to various wireless applications such as WiMAX, Wi-Fi, and Digital Mu...

This work discusses the introduction of concentration dependency relative permittivity in context activity coefficient models at different stages derivation models. We evaluate an experimental correlation and Michelsen–Mollerup–Breil model for order to assess impact using these both Debye–Hückel Born equations. Our results show that effects introducing levels are significant quantitative. Using...

In this paper, a symmetrical monolayer metamaterial superstrate is placed on microstrip patch antenna resonant at 3.5 GHz. MTM based CSRR Complementary Split Ring Resonators, constituting two rectangular rings opposite splits both ends, which are printed Rogers RT 5880 type substrate with relative permittivity of 2.2, tangential loss 0.0009, and thickness 0.508mm. This resonator capable exhibit...

in this research, electromagnetic properties of graphene-epoxy nanocomposite up to 3wt% graphene, were investigated in x band. results showed that these nanocomposites do not have significant permeability so that it can be considered equal to 1. however they exhibit high permittivity such that real part of permittivity of 3wt% graphene sample is 8.4 in 8ghz and 6.8 in 12ghz frequencies, which a...