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...
The method is based on the perturbation of the electromagnetic field of the transmission line by the unknown dielectric material. The measure is undertaken with the help of an oscillator (or V.C.O.), building around (or exciting) a microstrip resonator. This "active probe" is connected to ...
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...
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 dielectric permittivity of lunar surface materials determines the penetration depth of electromagnetic waves in the lunar subsurface; hence, it is crucial to the design of scientific payloads such as radars, microwave radiometers, and lunar surface electromagnetic experiments. Additionally, dielectric ...
This paper describes a nondestructive measurement method for complex permittivity of dielectric material at pseudo microwave frequencies. The resonator use... Nakayama,Akira - 《Ieice Transactions on Electronics》 被引量: 2发表: 1994年 Design and Optimization of Microwave Sensor for the Non-Contact Mea...
摘要: ' is assumed to be due to an enhanced absorption of hydrogen (protons) from the atmosphere by the thin and scattered edges of the Gaussian-like Pd electrode. The protons diffuse into the dielectric film and contribute directly or indirectly to the permittivity关键词:...
Design/methodology/approach – In the optimization process considered, besides the FSS square loop geometric parameters, the thickness and relative permittivity of dielectric material used as support are included as variables in the search space, using for this a model of dielectric effective ...
When the mate-rial is not isotropic, the individual components of the permittivity are given. A superscript S indicates a measurement made under constant strain ("clamped" dielectric constant). If the constraint is removed, the measurement yields ε T , the "unclamped" or free dielectric ...
The meaning of PERMITTIVITY is the ability of a material to store electrical potential energy under the influence of an electric field measured by the ratio of the capacitance of a capacitor with the material as dielectric to its capacitance with vacuum