The static permittivity is a key property for describing solutions containing polar and hydrogen bonding compounds. However, the precise relationship between the molecular and dielectric properties is not well-established. Here we show that the relative permittivity at zero frequency (static permittivity) can be modeled simultaneously with thermodynamic properties. The static permittivity is ca...

A novel complex structure of Printed Dielectric Resonator Monopole Antenna (PDRMA) with multi-bands operation is presented and investigated. In the proposed structure, a printed fork-like stepped monopole antenna is used for exciting two new modified hemicylindrical dielectric resonators with a great relative permittivity of 80. A narrow medium substrate with a low permittivity is also applied ...

Different perturbation theories for the relative permittivity of dipolar model fluids are assessed by comparison to a comprehensive set molecular dynamics (MD) simulation data Stockmayer fluids. With exception dense liquids, all MD univariate function so-called dipole strength y. Overall, good agreement is found between some and data.

where ε equals permittivity, εr equals relative permittivity, ε0 equals permittivity of free space (8.85 10 12 F Laboratory tests were conducted to simultaneously measure soil m 1), ε r equals dielectric constant (the real part of relawater content and salinity using a four-electrode Wenner array sensor. The sensor was modified to enhance the capacitive effect. Soil bulk tive permittivity), ε′′...

The electromagnetic parameters of a composite material can depend on the environment in which the material is cured. Nondestructive monitoring of composite materials during curing offers a means of assessing whether or not the final product will function as specified. Microwave measurements of complex permittivity and permeability have been made on a polyurea/polyurethane hybrid containing ferr...

Structural, vibrational and microwave dielectric properties of Nickel-Copper-Zinc ferrite (Ni0.2CuxZn0.8−xFe2O4) ceramics have been presented in this paper. Samples have been prepared using conventional auto-combustion method. The X-ray diffraction (XRD) results confirmed the ferrite samples to be of cubic spinel structure, which further was validated by Fourier transform infrared (FT-IR) and R...