查询词典 antenna array

The results not only optimize the original system, but also minimize the variation of performance of antenna sustaining a large range of variation of design variables.

该算例充分说明了基于健壮性的产品及过程开发方法的应用价值。

Line. In addition, the antenna reactance changes rapidly withfrequency.

另外，天线电抗的改变随频率的改变而迅速。

Expressions of the coupling length and the coupling area of an antenna to electromagnetic waves excitation are deduced with the reciprocity theorem.

应用互易定理推导出了电磁波激励下天线的耦合长度和耦合面积的表达式，这两个物理量可以表征天线的响应特性。

The Luneburg lens antenna is composed of a series of concentric shells of constant permittivity. Considering the complexity of numerical calculation, this paper presents a closed-form approach, which combines the spherical vector wave method and the reciprocity theorem.

摘要伦伯透镜是一种球形分层介质天线，考虑到数值计算的复杂性，本文提出用矢量球面波理论和互易原理相结合，分析其性能。

In this thesis, we reported a reconfigure antenna that is able to radiate different topologies of radiation pattern.

在这篇论文中，我们提出一种可动态辐射不同增益场型的天线系统。

The comparision with the continuous wave method and double-antenna method shows that the reflectometer essentially is equivalent to a integration of single-station method testing system module.The measurement system which can use single station can be used for reflectance measurement.

与连续波法、双天线法比较，得知反射计本质上相当于单站法测试系统中部分模块的集成，能采用单站法的测量系统就可用反射计测量。

Based on the model, retrieves the relative permittivity and relative permeability of the coating- material by iterative inversion of a neural network from the measured antenna temperature.

在此模型的基础上，用神经网络迭代法从测得的天线温度反演了隐身涂层材料的的相对介电常数、相对磁导率。

According to the effect of relative permittivity εr on the pulse propagation velocity in lossy dielectric space and the effect on the turnround time of signal between the antenna and the buried objects, it is presented that lossy dielectric space can be transformed into free space and the simulation results abtained from free space can also be amended to lossy dielectric space.

对探地雷达的微波全息成像法进行了分析研究，根据有耗介质空间中的εr 对脉冲传播速度的影响，以及对脉冲在收发天线与目标之间的往返时间的影响指出：可将有耗介质空间转化到自由空间，再将自由空间中的计算结果修正到有耗介质空间。

In metal foil above with UV ink business card printing and membership card making 30 μm thick corrosion resistance of antenna coil Roadmap.

在金属箔上面用UV油墨制卡和会员卡制作30μm厚的抗腐蚀的天线线圈的线路图。

Hardware construction of system.design of antenna and influence of parametersofantenna on resonant frequency are studied in the paper.

文中主要研究了系统的硬件构成、天线的设计和天线参数对谐振频率的影响。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。