The log-period dipole array is applied as a feed element for a back-fire antenna.
用对数周期振子阵作为背射天线的馈源。
Electrode effects, which are always a hindrance when the Dipole-Dipole array is used.
电极效应在用偶极-偶极排列时是经常遇到的一种干扰因素。
After this we analyzed and summarized monopole and dipole array acoustic waveform data under the different strata.
在完成对数据的解编之后，分析并总结在不同地层情况下阵列声波单极子和偶极子的波形特征。
The results indicate that a half-wave dipole array has good performance when array element space is also half-wave.
结果表明，对于半波长的偶极子阵列，当阵元间距为半波长时性能达到最佳。
In this paper, a kind of cylindrical EBG structures applied to base station cylindrical conformal dipole array antennas is studied.
对一种柱面电磁带隙结构应用于圆柱共形偶极子振基站天线进行了研究。
A new method for estimating formation S-wave anisotropy parameters from 4-component (4-c) data in cross-dipole array acoustic logging is proposed.
提出一种从四分量正交偶极子声波阵列波形数据中提取地层剪切波方位各向异性参数的有效方法。
The time-domain radiation characteristic of a three V-dipole array has been studied by direct time-domain method. Some valuable results are obtained.
本文利用直接时域法计算了由三单元V形振子组成的直线阵的时域辐射特性，得到了一些有用的结果，为时域天线的进一步研究提供参考。
By use of numerical approximation method, the paper USES the polynomial to approach segmentally the transient electric field from dipole dipole array.
本文采用数值逼近的方法，逐段用多项式表示偶极—偶极排列的瞬变电场。
The strongpoint of inline pole-dipole array is that it can obtain massive collection data, strong IP signal, larger penetration depth, highly surveying accuracy and highly working efficiency.
轴向单极～偶极排列具有采集的数据量大，激电信号强，穿透深度大，勘探精度高和效率高等优点。
A log periodic dipole antenna is analyzed by using circuit array approach.
本文利用路-阵方法分析了对数周期偶极天线。
The results show that the annular array in different combination and excitation condition has radiation characteristics of monopole, dipole and quadrupole of acoustic logging.
实验结果表明，在不同组合和激励条件下，圆弧阵具有声波测井的单极子、偶极子和四极子声源的辐射特征。
When the double and array dipoles are put in the conductive media, the formula of radiation field of them have been derived from vector potential equation of single dipole.
利用电偶极子辐射场的矢势导出了阵列偶极子在导电媒质中辐射场的一般形式，所给出的公式不仅适用于近区、感应区，而且还适用于远区。
The scattering of dipole antenna array and microstrip antenna array is discussed in this paper.
本文以振子天线阵、微带天线阵为例研究了阵列天线的散射特性。
Acoustic vector sensor with the electronic rotating directivity of dipole can effectively detect signal in the background of noises. More information can certainly be obtained by vector sensor array.
单矢量传感器具有可电子旋转的偶极子指向性，声压、振速信息联合矢量信号处理在噪声背景下有良好的探测能力，矢量(传感器)阵能取得更好的能力。
Based on the microwave network theory, the mathematical model of dipole in the array is set up in this paper. The relationship between F1 and F2 is derived.
本文根据微波网络理论，建立了阵元的数学模型，推导了F2和F1之间的解折关系。
The directivity of curvilinear dipole is analysed by the basic principle of antenna array, the relationship between the directivity and the length of curvilinear dipoles is obtained.
本文利用天线阵基本原理近似分析了曲线振子的方向性系数，得到了方向性系数随曲线振子长度的变化关系，为曲线振子天线的进一步研究及设计提供参考。
The dipole antenna array with trough reflector is widely applied to base stations for mobile communications.
板状振子型基站天线是一种现代移动通信中广泛使用的基站天线。
The function and usage of the software for analyzing the fan-shaped array of log-periodic dipole antennas are introduced.
详细介绍了对数周期天线扇形阵特性分析软件的功能及使用方法。
We mainly use air microstrip antenna and four-dipole antenna as the antenna elements. Directional array antenna which is composed of two antennas is analyzed, simulated and designed.
天线单元主要采用空气微带天线、四偶极子天线，并对这两种天线构成的定向阵列天线进行了分析、仿真和设计制作。
Sleeve dipole is chosen as antenna array element, because of its omnidirectional radiation and its configuration as antenna array.
天线单元采用套筒偶极子结构，这种结构既能实现全向辐射特性又易于串联组阵。
First this paper introduced the fundamental principle of antenna, such as dipole, fundamental electrical parameter, principle of antenna array, theory of space propagation, etc.
本文首先介绍了对称振子，天线基本电参数，天线阵原理，空间波传播理论等天线基本原理。
Then the mode scatter of dipole antenna array is evaluated with the moment method. The piecewise sinusoidal basis functions and Garlerkin's method are used in this paper.
文中首先分析了细线天线的计算模型，然后用矩量法分析计算了振子天线阵的模式项散射。
We study a pair of two-level atoms reducible density rectangular array when atoms by dipole-dipole interaction are put in a thermal reservoir. Decoherence of atoms is analyzed.
两个两能级原子置于外部环境(热库)中，当计及原子偶极间的相互作用时，通过研究两个原子约化密度矩阵，分析原子状态消相干规律。
We study a pair of two-level atoms reducible density rectangular array when atoms by dipole-dipole interaction are put in a thermal reservoir. Decoherence of atoms is analyzed.
两个两能级原子置于外部环境(热库)中，当计及原子偶极间的相互作用时，通过研究两个原子约化密度矩阵，分析原子状态消相干规律。
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