The effect of grain size on high frequency dielectric properties of PbTiO_3 based ceramics prepared by sol-gel process was studied.
首次报道了溶胶-凝胶法制备钛酸铅基铁电陶瓷的晶粒尺寸对其高频介电性能的影响。
The results indicate that high frequency dielectric relaxation of the ferroelectric ceramics is caused by piezoelectric resonance of domains.
实验研究表明,铁电陶瓷的高频介电弛豫主要是由材料内部的畴壁共振引起的。
A theoretical approach analyzing electrical performance for dielectric loaded du al-layer Frequency Selective Surface (FSS) configuration with dissimilar lattice and element geometries is proposed.
提出了一种研究不同栅格及单元外形并有介质加载的双层频率选择表面(FSS)电性能的理论分析方法。
The paper discusses high frequency discharge with dielectric electrode, emphasizing on the basic issues relating to the influence of frequency, dielectric constant on discharge and impedance match.
本文对具有介质电极的高频放电进行了讨论,对频率、介电常数对放电的影响,阻抗匹配等基本问题进行了探讨。
Some factors can affect greatly the effect of chargesdeposited in layer, such as applied voltage and frequency, dielectric material, DBD configuration and media gas, etc.
激励电源电压与频率、电介质材料、DBD结构、媒介气体等均会对电荷沉积效应产生较大影响。
Moreover, with the increase of the working frequency, the dielectric constants of the PST materials decreased, but the Curie temperature and temperature coefficient basically had no variation.
随着测试频率的增加,测得的材料介电常数略有下降,而居里温度与温度系数基本维持不变。
For the percolation composite, the dielectric loss value is always less than 0.4, irrespective of the frequency.
发生渗流效应时,复合材料的介电损耗低于0.4,与频率无关。
For the percolation composite, the dielectric loss value was always less than 0. 4, irrespective of the frequency.
发生渗流效应时,复合材料的介电损耗低于0.4,与频率无关。
Correspondingly, the dielectric dispersion which has a negative power relationship with frequency has also been found in a certain frequency domain.
与之对应,在一定频域内存在与频率成负幂次关系的介电色散。
It also showed that the complex dielectric constant and complex permeability decrease as the measuring frequency increasing, and maximum dielectric loss was 0.30, but magnetic loss is small.
其介电常数、磁导率基本都随测试频率的增加而下降;介电损耗值最大可达到0.30,磁损耗值较小。
An inductively coupled plasma antenna, which is installed on a center of the dielectric window, transfers radio frequency power from an RF power supply to the interior of the processing chamber.
感应耦合等离子体触角安装在介电窗上以便定位在介电窗的中心上,并且将来自射频电源的射频功率传输到加工室内部。
This paper describes the phenomenon of twinkling when the LCD is driven, and presents the analysis for the possible reasons, such as frequency, viscosity, cell gap, dielectric constant, etc.
本文对液晶显示器在显示时产生的闪动现象进行了描述,并对产生此现象的可能原因如频率、液晶粘度、盒厚、介电常数等进行了分组试验,并在分析试验结果的基础上,提出了相应的改进方法。
A numerical simulation approach analyzing electromagnetic characteristics for dielectric-loaded double-layer frequency selective surfaces (FSS) with dissimilar lattice geometries is presented.
给出了一种分析有介质加载的不同栅格外形双层频率选择表面电磁特性的数值模拟方法。
The accuracy of the dielectric loss measurement based on harmonic analysis algorithm is greatly influenced by the frequency fluctuation.
用谐波分析法进行介损测量时,很容易受到系统频率波动的影响,从而降低测量的准确度。
Microwave dielectric resonators apply to SRD high-time frequency multiplier. This is a new try.
将微波介质谐振器应用于阶跃管高次倍频器中,这是一种新的尝试。
When the frequency of the incident light lies around the Bragg frequency of the periodic dielectric, it will not be completely reflected as in the linear case.
频率处于周期介质布拉格频率附近的入射信号光,将不会像在线性周期介质中那样被完全反射。
The hot topic these days include the frequency dependence of the dielectric properties of laminates and the use of S-parameters to describe interconnect performance including causality and passivity.
这几天的热门话题包括层压板的介电性能的频率依赖性和S -参数来描述互连性能,包括因果关系和被动。
Applying Fourier transform frequency spectrum analysis, the equivalent formula and arithmetic for calculating the dielectric loss at power frequency are deduced.
基于这种变频法思想,结合傅里叶变换频谱分析法推导了介质损耗参数的工频等效计算公式和算法。
It features the low sintering temperature resulting in low power consumption, medium dielectric constant, high quality factor and temperature stable resonant frequency.
其具有降低烧成温度节能、中等介电常数、高品质因数、稳定的谐振频率温度特性。
In AC electrical field, the stable homogeneous glow discharge will appear by using dielectric barrier layer and high-frequency power source.
在交流电场中,利用介质阻挡层和高频激励源,可获得稳定均匀的大气压下辉光放电。
It was the most excellent representative of the low microwave dielectric ceramic materials, which can be developed as filters and resonators using in the microwave frequency area.
它是低类微波介质陶瓷材料的最优秀的典型代表,可作为滤波器、谐振器上的介质材料应用在微波范围。
Plasma was created by dielectric barrier discharge (DBD) system, which consisted of home-made middle frequency power supply and parallel plane electrode configurations.
等离子体的产生采用了自制中频电源和平行板电极结构组成的介质阻挡放电系统。
A system of material boundaries in the form of a solid dielectric rod or dielectric-filled tubular conductor capable of guiding high-frequency electromagnetic waves.
物质边界装置,形状是一根固体电介质杆或充满电介质的管状导体,能够导引高频电磁波。
Magnetic field distribution of low frequency electromagnetic wave in even medium is analyzed, which is related to the medium's dielectric coefficient and magnetic inductive capacity.
分析了低频电磁波在均匀介质中的磁场分布,其分布与介质的介电常数、磁导率密切相关。
Thus, the size of the dielectric antenna can be reduced and the dielectric antenna can have a wide range of a frequency band suppressing the maximum value of the VSWR to a small value.
由此,能够实现介电体装载天线的小型化,并且在该介电体装载天线中,可实现将VSWR的最大值抑制得较小的频率频带的宽频带化。
The paper introduces measurements about dielectric constant and tangential loss angle of a group of good function and high frequency printed electronic circuit plate with microstrip circuit.
介绍了利用微带电路来确定一组高性能、高频印刷电路板材料的介电常数和损耗角正切的方法,且给出了一组印刷电路板材料的特性测量值。
The dielectric coefficients of hematite ores measured in audio frequency range are always large in value, and show that hematite is a special dielectric.
在声频范围内测得赤铁矿介电系数值较大,说明它是一种特殊的电介质。
The high-frequency and high-voltage pulse power source is the core part of the dielectric barrier discharge.
高频高压脉冲电源是介质阻挡放电的核心部分。
The high-frequency and high-voltage pulse power source is the core part of the dielectric barrier discharge.
高频高压脉冲电源是介质阻挡放电的核心部分。
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