Antennas: Antennas are devices that transmit or receive electromagnetic waves by using conductive elements such as wires or rods. They are often surrounded by or embedded in dielectric materials to enhance their radiation efficiency, bandwidth, directivity, andimpedancematching. For example, horn antennas...
dielectric propertieselectronic band structureenergy bandFermi-Dirac distribution functioninsulatorssemiconductorsSummary The study of dielectric properties is concerned with the storage and dissipation of electric and magnetic energy in materials. In practice, most dielectric materials are solid. A dielectric ...
维也纳工业大学微电子学研究所Tibor Grasser团队, 德根多夫理工学院机械工程与机电一体化系Werner Frammelsberger教授,在Advanced Materials上发表题为 “Dielectric Properties of Ultrathin CaF2 Ionic Crystals” 的研究论文,报道了分子束外延法制备的超薄氟化钙薄膜具有优异的介电性能。
ABSTRACT The intrinsic dielectric properties of Al 2 O 3 have been investigated with respect to MIMCAP applications and compared to SiO 2 , SiN and Ta 2 O 5 . Al 2 O 3 may be scaled down to 20nm (3.5fF/μm 2 ) while still meeting the reliability requirements and thus surpassing SiN...
The factors which affect the dielectric response of food materials are examined in an attempt to establish a predictive model and to obtain a more basic understanding of dielectric properties. Detailed dielectric measurements were performed on rehydrated non-fat dry milk using the precision slotted lin...
27、l property 各种材料的能带结构各种材料的能带结构 Chapter3 Properties of Materials44 2.1.3.5 Electrical property 3.4.2 介介电性能电性能 Dielectric Property 电容电容C(capacitance)电荷量电荷量q与电压与电压V的比值:的比值: 平板电容计算:平板电容计算: C = (A/L) :介电常数,表征材料极化和储存电荷的...
The structure, dielectric and piezoelectric properties of (1-2x) BiScO3-xPbTiO(3)-xPbMg(1/3)Nb(2/3)O(3) ceramics with x=0.30-0.46 were investigated. A nonm... Alexandr Bush,K E Kamentsev,A M Lavrentev,... - INORGANIC MATERIALS C/C OF IZVESTIIA- AKADEMIIA NAUK SSSR NEORGANI...
Sintering and dielectric properties of KNbO3 Purpose: This work is aimed to determination of the influence of Sr 鈥 ferroactive substitution on physical properties and character of phase transitions (... K Kodaira,J Shioya,S Shimada - 《Journal of Materials Science Letters》 被引量: 34发表: 19...
The effective field method is applied to the calculation of the overall dielectric permittivities of composite materials consisting of a homogeneous matrix and a set of spherical inclusions (two-phase media). The main hypothesis of the classical version of the method is the so-called quasicrystalli...
Examples of Dielectric Material Dielectric materials can be solids, liquids, gases, and vacuum. Solid dielectrics are highly used in electrical engineering. Some examples of sold dielectrics are porcelain, ceramics, glass, paper, etc… Dry air, nitrogen, sulfur hexafluoride and the oxides of various...