It is not in need of buffer stage for cascading because of high input impedance.
因为具有很高的输入阻抗，所以级联时不需缓冲级。
The input impedance of a rectangular microstrip patch is discussed by this method.
利用本方法对矩形微带贴片的输入阻抗进行了讨论。
The small electrical antenna is characteristic of a low input impedance and a low efficiency.
传统的电小天线其特点是低输入电阻和低效率。
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与负载阻抗之间的关系。
A device which has an extremely high input impedance, low switching speed and low power consumption.
一种高输入阻抗、低开关速度及低功耗的半导体器件。
The input impedance is matched conjugately to the source impedance according to the maximization gain.
对于输入电路，则按照最大增益的原则使源阻抗与输入阻抗共扼匹配；
This type of antenna measurements can be translated into measuring the input impedance of two-port network.
而这类天线可以等效成相参激励下二端口网络来进行输入阻抗的测量。
The proper optimization of the gain and input impedance of an antenna is discussed in the view of practice.
从实用的角度出发，讨论了对天线增益和输入阻抗的合理优化问题。
DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit.
数字式电压表通常有10兆欧的输入阻抗。当测量高阻抗电路时﹐可能会有影响。
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，三角板天线是一种纯阻性天线，其输入阻抗值比较大。
A full-scale analysis of input impedance of the operational amplifier under the state of differential input is given here.
本文对运算放大器在差动输入状态下的输入阻抗问题做了全面的分析。
The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.
其结果包括阵列单元的输入阻抗、空间波辐射效率、方向性系数和辐射方向图等。
Methods High common mode input impedance of the circuit is used to remove the interference due to imbalance electrode impedance.
方法①提高整体电路共模输入阻抗以消除皮肤接触阻抗匹配失衡；
Instrumental amplifiers with high input impedance, high CMRR and low drift are widely used in the small signal amplifying field.
仪表放大器电路以其高输入阻抗、高共模抑制比、低漂移等特点在传感器输出的小信号放大领域得到了广泛的应用。
The axial cavum measurement device was used to simulate the input impedance of the body antenna based on the theory of long line.
本文基于长线理论用同轴线测量装置模拟弹体天线的输入阻抗值，使引信在同轴线测量装置中其工作状态和自由空间一样。
The typical SourceMeter instrument doesn't have as high an input impedance or as low a current capability as a source-measure unit.
典型的数字源表不像源-测量单元那样具有极高输入电阻或极低的弱电流测量能力。
The first method is based on the measurements of the input impedance at various bias voltages and the cartridge impedance of the diode.
第一种方法是测量二极管在各偏压点下的输入阻抗与管壳阻抗。
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环，消除了线路板绝缘电阻对放大电路输入阻抗的影响。
G. Fung et al. Results the modulus and phase simulated by the nine-element lumped parameter model could fit the goal input impedance well.
结果三弹性腔九元件集中参数模型模拟出的输入阻抗模和幅角与目标输入阻抗模和幅角能较好的吻合。
It is a voltage-controlled device with high input impedance, which makes it possible to control higher output power with a lower input voltage.
它具有输入阻抗高、电压控制和用低压控制大功率输出的特点。
Showing that frequency is little related to input impedance of the mutual-complementary antenna, antenna of this type is a ultra wide band one.
通过论证自互补结构天线的输入阻抗基本与频率无关的角度证明了该天线具有超宽带特性。
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.
模型的各段经优化后可使模型与人体动脉系统的输入阻抗的幅频值和相频值相符合。
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耗介质及天线结构参数对输入阻抗的影响，为天线设计提供了依据。
The signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers TLC2254 with high input impedance and low drift.
采用高阻、低漂移运放tLC 2254组成高阻差动放大电路用于酸度电极信号测量。
Using the surface impedance and the input impedance respectively, the impedance per phase for the solid rotor steel and the non-ferrous metallic slot wedges is calculated.
应用表面阻抗与输入阻抗概念，分别计算实心的转子铁心与非磁性金属槽楔的一相阻抗。
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：采用优化的测试装置进行测试，输入阻抗误差显著减小，并且这一结论在通常意义下都有效。
Based on the measured input impedance characteristics or the resonance parameters of a micro-strip antenna the dielectric constant can be obtained with the help of a computer.
借助计算机程序，可由微带天线的输入阻抗特性或谐振参数直接求出介电常数。
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.
用第一种方法求出了混频器的输入阻抗，用第二种方法讨论了收敛参量对改进收敛性的影响。
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.
用扫频仪测量天线的输入阻抗时，在同轴传输线与天线间应按平衡—不平衡变换器。
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.
此处采用在光壁圆锥喇叭内加载一个外形渐变的金属柱体来改变天线的输入阻抗，调节金属柱体的尺寸，包括两端的口径和长度，可以在要求的频段得到理想的输入阻抗。
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