antenna resistanc

antenna resistanc的基本解释

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[电] 天线电阻

与antenna resistanc相关的网络例句 [注：此内容来源于网络，仅供参考]

These antennas can cover GSM900/DCS/PCS/UMTS operation. In the chapter 2, the antenna is designed based on the concept of monopole antenna. Furthermore, the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching. In addition, to raise distance between radiation plane and ground will avoid capacitative effect effectually. In the chapter 3, the antenna is designed based on the concept of planar inverted-F antenna. Furthermore, that the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching is similar to chapter 2. But there is a difference in them. We can choose the short position to change input impedance at this structure. In the chapter 4, the antenna is designed based on the concept of planar inverted-F antenna which takes coupled-fed. It will produce the first mode and high-order mode near the frequency, 900MHz. The feature of this type is to reduce the volume effectually. This antenna can not only cover GSM900/DCS/PCS/UMTS operation but maintain good radiation efficiency. Finally, we will compare three antennas, and develop procedure with industrial view, and propose the prospect of the GSM/GPRS antenna in PND, as a conclusion.

在第二章中，我们使用单极天线设计概念，使用双路径架构并於末端耦合来对天线阻抗做匹配，产生涵盖GSM900/DCS/PCS/UMTS四频操作频带，并提高与接地面的辐射高度，以避免电容效应，使天线具有良好的辐射特性；在第三章中，使用倒F形天线设计概念，使用双路径架构於末端耦合，并於辐射臂上采取适当接地点电感效应作输入阻抗匹配，达成涵盖GSM900/DCS/PCS/UMTS系统的四个操作频带；在第四章中，采用倒F形架构并使用耦合馈入方式，使得长辐射金属臂在低频900 MHz附近产生共振，产生低频基频模态及高阶模态，以达成宽频及频宽涵盖GSM900/DCS/PCS/UMTS频带操作，并有效缩减使用体积；最后，分别比较此三种架构的优缺点，再加以业界角度来思考，研发产品天线的流程及思考方向，以及天线应用於可携式导航装置中未来的展望作为本论文的总结。

Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.

在Vlasov天线方面：用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序，该程序计算结果在主瓣上与实验测量吻合良好，近旁瓣也基本一致；利用矩量法计算了天线的反射系数，表明该天线有较小的反射，总的能量反射小于0.25％；详细分析了天线的辐射特性，给出了天线辐射波束相关参数的估算公式和天线设计公式；进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性；对天线的密封方式和功率容量进行了讨论，结果表明在不需很大密封罩的情况下可以获得GW级的功率容量；为了用Vlasov天线辐射同轴TEM模，研究了TEM-TM_(01)模式转换器的设计，得到了一些基本规律；最后，介绍和分析了带有锥形喇叭的Vlasov天线。

The invention comprises an antenna for receiving a satellite broadcasting signal; antenna coupling member. The antenna coupling member includes a coupling pin and a holding part. The coupling pin is electrically coupled with the socket of the mobile communication terminal for enjoying the satellite broadcasting and the said antenna. The antenna coupling member is coupled with the antenna. While the said antenna coupling member is coupled with the socket, the holding part is used for pluggable supporting the mobile terminal.

本发明包括如下几个部分：天线，它可以接收卫星广播信号；天线连接构件，它带有一个用于导电连接可欣赏卫星广播的移动通信终端的插口与上述天线的连接针，所述的天线连接构件结合于上述天线，在上述连接针连结于上述插口的同时，通过把持部可插拔地支撑于上述移动通信终端。

与antenna resistanc相关的网络解释 [注：此内容来源于网络，仅供参考]

dipole antenna：偶极天线

随著天线设计趋於专业化与兼顾美感,逐渐开始有各种不同型式的天线应用在行动电话上,如平板天线(Patch Antenna)、倒F形天线(PIFA Antenna)、偶极天线(Dipole Antenna)、螺线式天线(Spiral Antenna)等等、并且试著将天线隐藏在行动电话装置内部,

antenna; fantom; phantom antenna：幻像天线

"antenna; directional","方向天线" | "antenna; fantom; phantom antenna","幻像天线" | "antenna; ground","地面天线"

antenna; phantom; fantom antenna：幻像天线

"antenna; omnidirectional","多向天线;全向天线" | "antenna; phantom; fantom antenna","幻像天线" | "antenna; receiving","接收天线"