Lecture 22 Frequency Dependence of Dielectric Constant是【公开课】印度理工学院 - 介电陶瓷的基本原理(Fundamentals and Applications of Dielectric Ceramic,IIT)的第22集视频,该合集共计40集,视频收藏或关注UP主,及时了解更多相关视频内容。
constantpolymerThe dielectric constant () is a critical parameter utilized in the design of polymeric dielectrics for energy storage capacitors, microelectronic devices, and high-voltage insulations. However, agile discovery of polymer dielectrics with desirableremains a challenge, especially for high-energy...
The dielectric constant and electrical conductivity of single crystal and polycrystalline UO2 are found to be frequency dependent. The dielectric constant measured at low frequencies is anomalously large at room temperature but decreases to a limiting value (~25) below about 130 K. A knee observed ...
By the use of a position-dependent dielectric constant we have calculated the photonic band structure for electromagnetic waves in a structure that consist... M.,Plihal,and,... - 《Optics Communications》 被引量: 270发表: 1991年 Photonic band structures of two- and three-dimensional periodic ...
We find in both cases that the conductivity is only weakly dependent on frequency, in agreement with previous work. However, we find that the dielectric constant of CH(IrCl6)y is anomalously large 10. We suggest that the large dielectric constant can be modeled by an effective medium theory ...
Abstract A model of linear metallic strands interrupted by insulating lattice defects leads to some interesting predictions for the a.c. conductivity and dielectric constant of the type of nearly-one-dimensional metallic compound recently investigated by Kuse and Zeller.Access...
The dielectric constant ( ε′), dielectric loss ( ε″ ) and dissipation factor (tan δ ) for all samples presented relatively high values at low frequency and were found to decrease with the frequency. The values of ε′, ε″ and tan δ of the nanocomposite were lower than that of ...
摘要: The frequency dependent loss tangent and dielectric constant has been determined for various dielectric materials using a stripline test fixture by employing differential and multiple-reflection-based measurement techniques with a vector network analyzer...
A region of dielectric dispersion has been found in ferroelectric lead titanate zirconate ceramics at frequencies about 1Gc/sec. The losses associated with the dispersion are quite high, the dissipation factor rising to about 0.4 at 2Gc/sec. The magnitude of the dispersion is halved in the measu...
Table 1 Room temperature dielectric constant (Ɛr), Tangent loss, polarization (P), strain (S), piezoelectric constant (d33), normalized strain (d33*) and electromechanical coupling factor (Kp) values of ceramic samples. Full size table ...