• The MOSFET input diode is controlled by an electric field in the gate region, thus the input impedance is always extremely high because there is no forward biased diode to lower the input impedance.

    MOSFET输入二极管一个电场控制门区,因此总是输入阻抗非常因为没有正向偏置二极管,降低输入阻抗。

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  • The input impedance of a rectangular microstrip patch is discussed by this method.

    利用方法矩形微带贴片输入阻抗进行了讨论。

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  • It is not in need of buffer stage for cascading because of high input impedance.

    因为具有很高输入阻抗,所以级联时缓冲

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  • DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit.

    数字式电压表通常10兆欧输入阻抗测量阻抗电路时﹐可能会有影响

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  • Numerical results show the effects of the lossy medium and antenna parameters on input impedance, which could be used in designing cavity-backed slot antenna.

    本文的数值结果分别给出了有介质天线结构参数输入阻抗影响天线设计提供了依据。

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  • X1 probe: no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.

    X1探头没有衰减输入阻抗示波器输入阻抗一样(通常是1兆欧)。由于测试电路有很大负载影响所以很少使用这种探头。

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  • When the dominant mode TE10 is propagated alone in the rectangular waveguide, expressions for the real and imaginary parts of the input impedance seen by the coaxial line are derived.

    波导只传输(te_(10)模)时,求得从同轴线看去输入阻抗表达式

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  • It is a voltage-controlled device with high input impedance, which makes it possible to control higher output power with a lower input voltage.

    具有输入阻抗电压控制和用低压控制大功率输出的特点。

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  • Helical antenna has not only almost identical to the resistive input impedance in broad bandwidth, but also works by the end of super-gain front lobed map in the same frequency band.

    螺旋天线不仅宽频带上具有近乎一致电阻性输入阻抗而且同样频带超增益波瓣工作

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  • The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.

    结果包括阵列单元输入阻抗空间辐射效率方向性系数辐射方向图等。

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  • A full-scale analysis of input impedance of the operational amplifier under the state of differential input is given here.

    本文对运算放大器差动输入状态输入阻抗问题做全面的分析

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  • And insulating ring technology is adopted to further improve input impedance influenced by insulating resistance of printed circuit board.

    印刷电路板上加绝缘,消除了线路板绝缘电阻放大电路输入阻抗影响

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  • We computed the input impedance of mixer with the first method, and we also discussed the effect of the convergent parameter on improving the convergence with the second method.

    第一方法混频器输入阻抗,用第二种方法讨论收敛参量改进收敛性的影响

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  • Values of each segment of this model were adjusted to give an optimum match to aortic input impedance both in values of modulus and phase frequencies.

    模型各段优化后可使模型与人体动脉系统输入阻抗的幅频频值相符合

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  • A device which has an extremely high input impedance, low switching speed and low power consumption.

    一种输入阻抗开关速度功耗的半导体器件

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  • The typical SourceMeter instrument doesn't have as high an input impedance or as low a current capability as a source-measure unit.

    典型数字像源-测量单元那样具有极高输入电阻低的弱电流测量能力

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  • The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio (VSWR), horizontal gain and radiation pattern.

    研究了这种新型套筒天线输入阻抗电压VSWR)、增益辐射方向图等特性

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  • Several examples are given to show that by properly adjusting the distances between elements, the variation of input impedance of the central element as function of scan angle may be controlled.

    对于几种排列方案所作计算表明利用不均等元素间距可以在一定程度上控制天线输入阻抗随着扫描变化规律。可能解决互耦困难的一种途径。

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  • This paper presents a novel concept for system integration at system level, which is to select output impedance of source converter and input impedance of load converter as objects of standardization.

    该文提出一种新颖系统集成观点,系统的高度分布式供电系统中的变换器输出阻抗负载变换器的输入阻抗作为标准化研究对象

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  • The stator's characteristics of vibration and input impedance were analyzed by using the finite element software ANSYS. A new decoupling method between the two vibrators was presented.

    电机运行机理进行了分析,并利用有限元软件ANSYS分析了电机定子振动特性阻抗特性,同时提出了一种解耦方法

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  • Also, the relationship between the input impedance and load impedance of the waveguide is discussed.

    讨论了波导管输入阻抗负载阻抗之间关系

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  • The numerical results were obtained in a table by solving the combined equation of transmission line impedance transfer equation and terminal input impedance expression in gas capacitance.

    通过传输线阻抗转移公式终端输入阻抗隙电容表达式方程得出数值结果

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  • The axial cavum measurement device was used to simulate the input impedance of the body antenna based on the theory of long line.

    本文基于长线理论轴线测量装置模拟天线输入阻抗值,使引信同轴线测量装置中其工作状态和自由空间一样。

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  • The analysis shows that the TVA is a pure resistive antenna with a higher input impedance than that of corresponding EVA.

    分析表明三角板天线一种阻性天线,其输入阻抗比较大。

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  • Instrumental amplifiers with high input impedance, high CMRR and low drift are widely used in the small signal amplifying field.

    仪表放大器电路输入阻抗、高共模抑制比漂移等特点传感器输出的信号放大领域得到了广泛的应用。

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  • By comparing input impedance values before and after optimization, it is showed that the error of input impedance decreases sharply when improved testing device is adopted.

    优化前后输入阻抗理论值比较表明采用优化测试装置进行测试,输入阻抗误差显著减小,并且这一结论通常意义下都有效。

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  • G. Fung et al. Results the modulus and phase simulated by the nine-element lumped parameter model could fit the goal input impedance well.

    结果弹性腔九元件集中参数模型模拟出的输入阻抗幅角目标输入阻抗模和幅角较好的吻合。

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  • By modeling the parameters of metal cylinder such as the diameters of both ports and the length of the metal cylinder, the demand input impedance of the conic horn can be obtained.

    此处采用光壁圆锥喇叭内加载一个外形渐变金属柱体来改变天线输入阻抗,调节金属柱体的尺寸包括两端的口径长度可以要求的频段得到理想的输入阻抗。

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  • When using frequency sweep meter to measure the input impedance of antenna, the balanced - unbalanced transformer must be connected between coaxial transmission line and antenna.

    测量天线输入阻抗时,在同轴传输线天线平衡—不平衡变换器

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  • The input impedance is matched conjugately to the source impedance according to the maximization gain.

    对于输入电路,则按照最大增益原则使阻抗与输入阻抗共匹配

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