The log periodic dipole antenna(LPDA) is used as an object of study.
主要研究了对数周期偶极子天线。
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。
Furthermore, a size reduction rate of 50% compared with a general dipole antenna is realized.
此外，天线高度和常规偶极子天线相比减小了约50%。
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。
The method, which could diminish the dimension of Log-Periodic Dipole Antenna is discussed in this paper.
本文探讨减小对数周期天线尺寸的方法。
This paper chooses a normal mode helical antenna to replace the short dipole antenna to improve efficiency.
本文采用法向模螺旋天线代替以前采用的短偶极子天线以提高效率。
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 problem of a linear dipole antenna mounted on a dielectric slab is investigated theoretically and experimentally.
本文对介质板上的直线振子天线作了理论和实验研究。
In the exemplary embodiment, shown in FIG. 1, the second conductor 104, is a conductor having a dipole antenna structure.
在图1所示的该示例性实施例中，第二导体104是具有偶极天线结构的导体。
The tag antenna is a key component of RFID systems. Dipole antenna and its modification types are widely used in UHF band.
标签天线是RFID系统的关键部件， UHF频段RFID系统多采用偶极子天线及其变形型式。
A kind of ultra wideband (UWB) antenna, which consists of an arm-folded dipole antenna and a dielectric block, is proposed.
介绍了一种由折叠臂偶极天线和并联介质块组成的小型化超宽带天线。
Under certain axis ratio bandwidth, the circular polarization axis ratio of the optimized cross dipole antenna can reach 1.
在一定轴比带宽条件下，优化后的十字振子天线正交方向上圆极化轴比可以达到1。
And different thickness symmetry dipole antenna can be chosen by different requirement on capability of antenna in practice.
实用中可以根据对天线性能的要求，选择合适粗细的对称振子天线。
To obtain the balanced feed for the dipole antenna driven by a coaxial transmission line, a coplanar waveguide fed structure is used.
为获得在同轴馈电时天线振子的平衡馈电，该设计使用了共面波导馈电结构。
Several dipole antenna models were proposed to modeling the near electromagnetic field of high-frequency switched mode power supplies (SMPS).
讨论了用于开关电源辐射建模的基本偶极子天线模型，给出了各模型电磁场的解析解。
Firstly, conventional dipole antenna is studied by numerical simulations, and the relationship between antenna parameters and its sizes is obtained.
首先，对常规偶极天线进行了数值模拟研究，得到了一些天线参数与其尺寸的关系。
The general formulas of radiation from dipole antenna in a circular waveguide are given by means of dyadic Green's function and field transformation.
本文采用并矢格林函数和场量变换方法，给出了圆形波导中偶极天线辐射的普遍公式。
A method, covering the antenna with an antenna radome, is proposed in the paper to realize the broadband impedance matching of the half-wave dipole antenna.
该文提出了一种加天线罩来实现半波振子天线宽频带阻抗匹配的方法。
A new type of broadband printed twin dipole antenna is proposed in this paper. Corresponding feed structure of broadside coupled parallel line is also designed.
本文给出了一种新型双偶极子型宽带印制天线，并设计出相应的类平行宽边耦合双线双面馈电结构。
The major work of this thesis is to design and make a good LPDA(log-periodic dipole antenna)as the feed of the ten-meter parabolic reflectors at the Yunnan Observatory.
文中所作的主要工作是为云南天文台十米抛物面设计、制造一付好的对数周期偶极子天线（LPDA）作馈源。
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。
For a UWB communication system, by using differential characteristic of Herz magnetic dipole antenna, the narrow pulse can be produced from the rise edge of input square-wave signal.
在UWB通信中，利用赫兹磁偶极子天线的微分特性，由输入方波的上升沿产生窄脉冲。
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。
A computer program is given for log-periodic dipole antenna (LPDA) design with the "Three-Term" theory. The program can quickly design and optimize physical or electrical parameters of LPDA.
本文给出了用“三项理论”设计对数周期偶极天线(以下简称LPDA)的计算机程序，它能快速地设计出该天线的各几何参数和电参数，并可进行优化。
The distributed static capacitance of the dipole antenna was solved by finite difference method. The influences of the antenna configuration coefficients on the distributed capacitance were analyzed.
首先用差分方法求解了偶极天线上的静态电容分布，并分析了分布电容与天线结构参数之间的关系。
The results indicate that bandwidth of the new antenna is larger than that of the normal microstrip dipole fabricated on the same substrate.
理论分析表明：在相同的基片上，双偶极子型印制天线比普通微带振子天线的带宽宽得多；
In contrast, the basic half-wave dipole - the basis for many antenna designs - is a differential component.
与此相反，基本半波偶极子-的基础许多天线设计-是一个差分分量。
In contrast, the basic half-wave dipole - the basis for many antenna designs - is a differential component.
与此相反，基本半波偶极子-的基础许多天线设计-是一个差分分量。
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