偶极天线

This thesis contributed to the comprehensive study of the Finite-Difference Time-Domain method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. The work includes mainly three parts: the study on the performance of PML absorbing boundary condition applied to pseudo low frequency electromagnetic problems; the validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies; the development of an improved alternating direction implicit finite-difference time-domain method.

在综合前人工作基础上，本文对时域有限差分法及其在开关电源辐射电磁场数值计算中的应用进行了系统的分析和研究，其核心内容包括：伪低频电磁场数值计算中PML吸收边界条件性能的研究；基于基准问题—电偶极子天线三维辐射电磁场，验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件，并应用于高频开关电源辐射电磁场的数值分析；提出了一种改进的交替方向隐格式时域有限差分法。

Figure 5: Stacked-dipole planar "bedspring" antenna.

图五：叠层偶极平面天线。

In this dissertation, what under consideration is the dipole array.

本论文中考虑的都是偶极子阵列，但是对其他型式的单元组成的天线阵的口面分布的实现，本论文的基本思想也有一定的指导作用。

It is possible to measure theelectric field strength by connecting a dipole antennato the input connector.

是有可能的措施，电磁场的强度由连接偶极子天线，以输入连接器。

In the end, Chapter 5 has a discuss on the dipole array tacked by a finite reflecting plate.

它们显示在天线阵应用中，调节偶极子单元的长度有可能给系统的设计带来极大的方便。

The principles of microstrip balun and printed dipole were analyzed, and the antenna＇s ground plane was extended and shaped to form the reflecting structure.

分析微带巴伦和印制偶极子的工作原理，延伸并成形天线的地平面以得到反射结构。

The dipole may be a metal rod and the loop antenna portion may be a flexible wire loop.

偶极可以是金属棒，并且环天线部分可以是柔性导线环。

Now our main products are: PTX-LCD, TEX-LCD/S, BLUES30NV serial FM exciters, TX serial 1-10KW FM transmitters, TX serial 3-20KW hot plug-in transmitters, AJ1F serial vertical polarization FM antenna, DPA serial panel FM antenna, star-point or bridge style FM multiplexor, digital STL microwave link, professional receivers and any TV related products.

公司主要产品有：PTX-LCD/S，TEX-LCD/S，BLUES系列调频激励器，TX系列1-10KW调频发射机，TX系列3-20KW热插拔数字调频发射机，AJ1F系列各种功率等级的垂直极化调频天线，DPA系列带反射板偶极子调频天线，星型，桥型系列大功率调频多工器，数字STL微波传输系统，专业调频收转机等及所有电视设备产品

Tesla's technology used "near field" effects of coils, capacitors, and transmission lines, not the dipole antennas that Hertzian waves use, and in that sense his waves were non-Hertzian.

&特斯拉的技术使用&近场&电容效应的线圈，和传输线，而不是使用波偶极子天线的赫兹，在这个意义上说他的海浪是&非赫兹。

Connect the lugs of the folded dipole to the FM antenna terminals on the back of the radio.

连接被折叠的偶极的把手到FM 天线终端在收音机的后面。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐