A new method to estimate the relative dielectric permittivity of material's sheet is presented. In this method, a conventional microstrip patch sensor (MSPS) is utilized to resonate at 2.45 GHz. An unknown material, considered as a superstrate layer of 5 mm thickness, is located in the near-...
B. Dou, "A new approach for measuring permittivity of dielectric materials," Journal Electromagnetic Waves and Applications, Vol. 19, No. 6, 795-810, June 2005.Qian, C. and W. B. Dou, "A new approach for measuring permittivity of dielectric material," Journal of Electromagnetic Waves and...
在英语中表征“介电常量/数”这个物理量的名词有3 个:dielectric constant 或者dielectric function 或者permittivity。这样,其中文直译依次为:介电常数,介电函数,电容率。然而,由于历史原因,在现行的中文教科书和科技文献中几乎都采用dielectric constant 的翻译“介电常数”来...
The permittivity of an insulating ordielectric materialis symbolized as ε. In electrical engineering applications, permittivity is often expressed in relative rather than absolute terms. Simply put, relative permittivity is the ratio of the permittivity of a substance or material to the permittivity of...
However, the dielectric layer employed in this design has a rather high permittivity, which may block the near field interaction between the biological specimen and metal film. Hyperbolic metamaterials, a kind of anisotropic material in terms of permittivity that can support a very high ksp, are ...
Thevoltage,frequency,temperatureanddielectricpermittivitydependentfatiguepropertiesofBLTFarecalculatedwiththeextendmodel. 利用扩展模型分析了电压、频率、温度以及材料的介电常数和畴结构等因素对疲劳特性的影响。 www.boshuo.net 5. As amainfunctionparameterofdielectricmaterial,measurementmethodsofpermittivityarediverse. ...
The permittivity of common materials is given in Table 1. TABLE I. Common Values for the Dielectric Constant. Material A material that has low conductivity but a dielectric constant greater than 1 is known as adielectric. Properties of the Permittivity in Relation to Maxwell's Equations ...
Dielectric Properties of Tungsten Copper Barium Ceramic as Promising Colossal-Permittivity MaterialCeramicdielectric propertiesgraingrain boundaryBa(CuW)O(BCW) ceramic has been fabricated and its dielectric properties investigated for use in energy-storage applications, revealing a very large dielectric constant...
2.2.2Dielectric and thermal properties The macroscopic interaction between anelectromagnetic fieldand a material is expressed by thepermittivityε* and the permeabilityμ* of the material. The permittivity describes the electrical properties, while the permeability describes the magnetic properties of the ma...
The microwave dielectric material has the components including ZnO in 1.5-3.0 molar fraction, SiO2 in 0.5-1.3 molar fraction, ZnO and SiO2 in 0.05-0.1 wt%, and ln2O3 for the rest. The microwave dielectric material has the advantages of low dielectric constant and high Q value, as well ...