实验结果表明柱形等离子体天线输入阻抗曲线具有明显的谐振特性。
The experimental result shows the resonance behavior of the impedance curves is prominent.
为了方便设计有源集成天线，本文提出了基于微带天线输入阻抗宽带模型的有源集成天线设计方法。
For convenience of AIA design, the AIA design method based on the input impedance wide-band model of patch antenna is used in this paper.
应用改进矩量法，只取较少的基函数项的情况下，导出了矩形微带贴片天线输入阻抗的计算公式，并进行了软件实现。
Using improved moment-method with fewer terms of basis functions, formulae for calculating the impedance are derived and software is achieved.
天线输入阻抗是个极易变化的参数，而传统的手工匹配技术很难对动态负载做到实时、快速的匹配，限制了RFID技术在很多领域的应用。
Traditional manual matching technology is difficult to statify dynamic load impedance immediately and fast, which largely limit the RFID technology applications in many fields.
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。
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.
该天线采用平衡微带线作馈线，以印刷振子作为辐射单元，末端采用匹配电路对其输入阻抗进行匹配。
Balanced micro-strip line is utilized as feed line, printed dipole is adopted as radiation element, and a matching network is employed for tuning the input impedance of the antenna.
研究了这种新型套筒天线的输入阻抗、电压驻波比（VSWR）、增益及辐射方向图等电特性。
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.
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 axial cavum measurement device was used to simulate the input impedance of the body antenna based on the theory of long line.
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。
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.
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。
This type of antenna measurements can be translated into measuring the input impedance of two-port network.
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。
The proper optimization of the gain and input impedance of an antenna is discussed in the view of practice.
对于几种排列方案所作的计算表明，利用不均等的元素间距可以在一定程度上控制天线元输入阻抗随着扫描角的变化规律。这可能是解决互耦困难的一种途径。
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.
本文首先利用矩量法计算平面馈电型微带贴片天线的输入阻抗，并对其进行实验测量；
The Method of Moment (MoM) is used first for calculating the input impedance of microstrip patch antennas fed by microstrip line.
还计算了自由空间的双环天线的输入阻抗，将结果和由单环的计算值经传输线变换而获得的结果作了对比。
The input impedances of the double-loop antenna in free space are also calculated, and the results obtained are compared with those from transmission line transformation of ca…
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。
Showing that frequency is little related to input impedance of the mutual-complementary antenna, antenna of this type is a ultra wide band one.
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。
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.
通过比较分析，得到了天线谐振频率、谐振点电压驻波比、带宽以及输入阻抗随不同几何参数的变化规律。
By comparative analysis, the dependence of the resonant frequency, voltage standing wave ratio, bandwidth and input resistance on different geometric parameters is 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。
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.
天线匹配指定频率范围内，调整阻抗使得天线的输入阻抗等于或大致等于其发射线路特性阻抗的过程。
The process of adjusting impedance so that the input impedance of an antenna equals or approximates the characteristic impedance of its transmission line over a specified range of frequencies.
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。
The analysis shows that the TVA is a pure resistive antenna with a higher input impedance than that of corresponding EVA.
利用阶梯近似方法结合缝隙天线电路模型分析其输入阻抗，最后采用GTD方法计算该种天线的辐射方向图。
Combination of ladder approach method and equivalent circuit model of slot antenna had been used to analyze its input impedance. Finally, GTD had been used to calculate the radiation pattern.
由于该天线的输入阻抗随频率而变化，需要用一个宽带变负载阻抗匹配网络来实现天线与电台之间的匹配。
The impedance matching network of changeable load and wide-belt is required because the input impedance of spiral antenna changes with frequency.
基于严格的全波方法分析计算了介质薄层覆盖下由探针激励的圆柱共形微带天线的输入阻抗和辐射方向图。
The reflected voltage on the reference plane, the computation of near and far electric fields of cylindrical monopole antenna are completed using this method.
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。
Numerical results show the effects of the lossy medium and antenna parameters on input impedance, which could be used in DE...
本文提出一种简单而实用的平面结构的单极子电小天线，研究输入阻抗随天线外形尺寸和频率的变化规律。
In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
本文提出一种简单而实用的平面结构的单极子电小天线，研究输入阻抗随天线外形尺寸和频率的变化规律。
In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
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