等效电路

Firstly, based on general equivalent circuit model for coupled resonator filters, the synthesis is discussed using the orthogonal transformation of the coupling matrix.

首先，通过分析交叉耦合谐振滤波器的等效电路模型，给出了滤波器电路参数与散射参数之间的函数关系和利用正交变换综合设计滤波器的方法。

The spread paths of common mode and differential mode noises in an SMPS under electrical fast transient/burst are studied and discussed. Hereby for single transient pulse, the vector fitting method is adopted combining rational function approximation according to the tested waveform to construct the a mathematical modeling of frequency, then a pole-residue representation is obtained by partial fraction expansion, and the last step are to draw a state space description and equivalent circuit.

在分析开关电源进行电快速瞬变脉冲群骚扰试验时共模和差模噪声的传播途径的基础上，对于单个脉冲，根据试验数据采用矢量匹配法结合有理函数逼近构造得到频域下的数学模型，通过部分分式展开得到零极点表达式，并最终得到相应的状态空间方程以及等效电路。

Then, base on the equivalent circuit model for cascaded coupled resonator filter, the method for measuring or computing the phase of the reflection coefficient of short-circuit terminated networks and synthesizeing all the inter-resonator couplings and resonant frequencies of the filters to be tuned is studied intensively. The phase loading effect is removed and the tuning steps are analyzed. The method based on the partial fraction expansions of admittance matrix is used to synthesize coupling matrix of the filters under tuning.

然后，通过分析级联耦合滤波器的等效电路模型，着重研究了利用测量或计算终端短路网络的反射参数的相位来综合出待调级联耦合滤波器各个腔体的谐振频率和腔体间的耦合系数的方法，并且消除了端口相位加载的影响，给出了具体的调试步骤；接着利用导纳矩阵部分分式的展开来求得待调滤波器耦合矩阵，着重研究了消除端口相位加载的方法。

Motor equivalent circuit model with edge effect is built,and electromagnetism propulsive force,power and efficiency deduced.

建立了计及边端效应的电机等效电路模型，推导出了电磁推力、功率与效率等通用特性关系式。

Different noises are added to the ideal CITs which is obtained by using randle equivalent circuit ,and then, the de-noising criterion in practice for CITs using the empirical mode decomposition is obtained.

通过计算机仿真，在模拟等效电路生成的理想瞬态响应信号上加入不同形式的噪声，获得恒电量瞬态响应信号经验模式分解滤波的实际判据。

The frequency and the circuit parameters of a rectangular reentrance resonant cavity have been studied by the unperturbed theory and the principle of the equivalent circuit of a ridged waveguide, respectively.

分别采用导体微扰原理和脊波导的等效电路参数，研究了矩形重入谐振腔的频率和电路参数。

A dynamic voltage restorer based on ultracapacitor energy storage was described for voltage quality of distribution network.

在建立基于等效电路的超级电容器储能系统的数学模型基础上，设计了一种超级电容器储能的动态电压恢复器。

Based on equivalent circuit approach, the transmission and attenuation characteristics of the two dominant modes of IDG are schematically analyzed.

采用一种基于等效电路的方法，系统地分析了插入介质波导中两种主模式的色散特性以及衰减特性。

It is presented that the equivalent circuit and formulae for calculating inductance parameters (self inductance and mutual inductance) of shunt reactor with auxiliary winding system in the paper.

提出带抽能线圈并联铁心电抗器的等效电路和电感参数设计公式，通过对这种特殊并联电抗器三维非线性磁场的有限元分析，准确地计算出电抗器的电感参数以及抽能线圈空载和负载情况下电抗器的伏安特性曲线。

The influence of the metal shadow mask on discharge was considered as well. A stable simulation environment and simulation process had been established.

作者建立了一个稳定可靠的仿真环境和灵活有效的仿真方法，通过比较实验电路波形和仿真波形，验证了本论文所提出的等效电路模型的正确性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。