The dielectric constant of air is very close to the dielectric constant of vacuum. This is why neither vacuum nor air increase the capacitance of a capacitor. On the other hand, solid dielectric substances such as polyethylene or glass, which have a higher dielectric constant, can sustain perman...
The heterodyne beat frequency method of determining dielectric constants has been applied to the measurement of the dielectric constant of air with an applied frequency of field of 900,000 cycles per second. Radio broadcast signals, stripped of modulation, were used as sources of alternating current...
It has been shown that the dielectric constant of certain non-polar liquids, consisting of molecules with small polarizability, may be considerably less than 2, which is the lower limit usually given in the literature for this class of substance. The values of 蔚 calculated from Eqs. (10) ...
IN recent years, a large number of experiments have been carried out on the dielectric constant of ionised air with the object of verifying the Eccles-Larmor theory, which demands that the dielectric constant of an ionised gas should be less than unity. Study of the literature on the subject...
Solution: UseEquation 9.24and thedielectric constantfor a vacuum. The dielectric constant for a vacuum isε0=8.85×10−12coul2/newton m2and is also used for air. A=Cdε0=1coul/v(10−3m)8.85×10−12col2/newtonm2=1coulnewtonm/coul8.85×10−12col2/newtonm2=1.13×108m2 ...
Dielectric Constant of Dry Ambient Air and Some of its Constituent Gases at Selected X-Band Frequencies 来自 IEEEXplore 喜欢 0 阅读量: 20 作者:JD Wingfield,CM Zieman 关键词:Dielectric constant DOI: 10.1063/1.1658763 被引量: 2 年份: 1970 ...
where ε′ retains its significance as the relative permittivity (dielectric constant), and ε″ is commonly regarded as the dielectric material's loss factor (dielectric loss). At this point in the discussion, some of the general features of a real dielectric material can be considered in the...
The dielectric constant (also calledrelative permittivity) is a dimensionless number that indicates how much a material increases the capacitance of a capacitor compared to a vacuum. Vacuum has a dielectric constant of 1, which means it does not affect the capacitance at all. Air has a dielectric...
Low dielectric constant intermetal dielectric (IMD) by formation of air gap between metal lines 来自 百度文库 喜欢 0 阅读量: 72 申请(专利)号: US19990270592 申请日期: 1999-03-18 公开/公告号: US6022802A 公开/公告日期: 2000-02-08 申请(专利权)人: TAIWAN SEMICONDUCTOR MANUFACTURING ...
Trends in the ultimate breakdown strength of high dielectric-constant materials. IEEE Trans. Electron Devices 50, 1771–1778 (2003). Article CAS Google Scholar Chen, I.-C., Holland, S. & Hu, C. Electrical breakdown in thin gate and tunneling oxides. IEEE Trans. Electron Devices 32, 413...