The typical measured dielectric constant, dissipation factor, tunability and resistivity of Ba0.6Sr0.4TiO3 thin films doped with 5% Mg were 380, 0.013, 17.5% and 1.0 ×1012Ω2·cm, respectively.
当Mg掺杂量分数为5%时,其介电常数为380,损耗因子为0.013,电容变化率为17.5%,电阻率为1.0×10~12Ω. cm.
In this paper, the nonlinear partial equation with dissipation term-Burger'sequation is adopted as model equation. Linear and nonlinear computational stabilities of some three (time) level schemes which are used in numerical weather prediction are analysed, particularly, the effect of computational initial value, length of time step and the dissipation factor are discussed.
In this paper, the nonlinear partial equation with dissipation term-Burgers equation is adopted as model equation The computational stability of two kinds of general three time level schemes and two time level schemes which are used in numerical weather prediction is analyzed, particularly, the effect of computational initial value, the length of time step and the dissipation factor are discussed. A new method for judging the computational stability is given.
With this kind of electrolyte, by using F. B.P, the dissipation factor and the measuring current as three criteria for the measurement, and by choosing appropriate measuring voltage and etching current, the experimental results can be achieved quickly, reproducibly and reliably.
The results show that there is excellent compatibility between PTFE and FEP,and that,after the modification by blending,the peeling strength of CCLs increases from 1.8kN/m to 2.26kN/m,and the flexural strength increases from 100MPa to 134MPa,while the dielectric dissipation factor decreases from 8×10~(-4) to 7×10~(-4).
The suitable mass fraction of SFR100 was 4% in the flame retardant ABS with 14% TBAB. The OI and impact strength increased to 31.8% and 15.1 kJ/m2 from 29.2% and 11.2 kJ/m2 respectively. Furthermore, the electrical strength increased and the dielectric constant and the dielectric dissipation factor decreased.
This paper introduces two types of fixed non-contacting electrode systema which can be used to measure relative permittivity and dissipation factor of polymeric thin films conveniently and accurately at frequencies of 50 Hz, 1kHz and 1MHz.
By studying the filling which can adjust dielectric constant, the equality of dielectric thickness andcopper board preparation technics , have developped high frequency circuit using copper-clad copper base boardwhose dielectric constant is 6.15 and dissipation factor is 0.0015.
The results show that there is excellent compatibility between PTFE and FEP,and that,after the modification by blending,the peeling strength of CCLs increases from 1.8kN/m to 2.26kN/m,and the flexural strength increases from 100MPa to 134MPa,while the dielectric dissipation factor decreases from 8×10~(-4) to 7×10~(-4).
By studying the filling which can adjust dielectric constant, the equality of dielectric thickness andcopper board preparation technics , have developped high frequency circuit using copper-clad copper base boardwhose dielectric constant is 6.15 and dissipation factor is 0.0015.
The results show that the corona-resistant lifetime of PI with nano-TiO 2 loading of15%is about40timeslonger than pure PI film at the electrical stress of12kV/mm. But the mass resistivity and the breakdown strength of nano-TiO 2 filled polyimide film are deteriorated with nano-TiO 2 loading,and the relative dielectric constant and the dissipation factor are increased with nano-TiO 2 loading.
The aplications of low dielectric constant and low dissipation factor substrate material in PCB production are widering,Manufacturing technology researsh of microwave PCB are importance more and more.
Extending upon previous studies of statistical fractal automata, a redistribution law is introduced which incorporates two model parameters: a dissipation factor and a stress transfer ratio.
A novel double layer structure has been developed to reduce the pinholes and improve the electrical properties, such as higher dielectric constant, lower dissipation factor, higher breakdown fields and low leakage currents.
We determine the optimal displacement of the small mirror from the quasi-focal area of the large mirror, ensuring the minimum main-lobe width in terms of a given level and a given dissipation factor.
The typical measured small signal dielectric constant and dissipation factor at a frequency of 100 kHz were 299 and 0.065, respectively, for a thin film with 230 nm thickness annealed at 600°C for 2 h.