辐射电阻

本文利用曲线积分的方法，导出了V型偶极子天线在空间任一点处远区场的一般数学表示式以及方向性函数、辐射电阻和方向性系数的计算式。

In this paper the general formulas on calculating far-field for the Vee Dipole Antenna at the space are derived from method of curvilinear integration and the field pattern , the radiation resistance and the directivity are given .

同时利用远区场给出了该天线辐射电阻计算公式（当ka1时）。

By using the far zone field strength , as well as the calculated formula of radiation resistance of the antenna can be got ( when ka1 ) .

Koch分形也被用于环天线，研究结果表明Koch分形可增加小环的辐射电阻。

The Koch fractal is also applied to small loop antenna and the analysis results show that the Koch fractal can improve the input resistance of small loop antenna .

仿真计算及模型实验结果表明，理论上通过合适的加载可改变电流分布，增加天线辐射电阻，提高天线效率。

The modeling results show that a proper loading can improve the efficiency of the mobile VLF antenna .

园锥体上放置小天线时辐射电阻计算及场强的级数表示式

A Series Representation of the Electric Field and the Calculation of the Radiation Resistance for a Short Antenna Set on a Cone

本文详细阐述了此电小天线系统与馈源50Ω匹配，实现自谐振的原理，且对此电小天线系统如何提高辐射电阻做了详尽的分析。

This paper explains the reason why these electrically small antennas can match the feed source to realize self-resonance and analyzes the principle of improving radiation resistance in detail .

同时研究了引线及顶线的各项参数变化对天线的有效高度、增益、输入电抗、辐射电阻及静电容的影响。

The affection of parameter variation of down lead wires and top loading wires on effective height , radiation pattern , input reactance , radiation resistor and static capacitance is discussed .

只要选择天线高度和导线直径即可实现与50Ω馈线匹配而不需要匹配网络；具有较大的辐射电阻和较高的效率。

The result shows that this antenna is characterized by its small height easily mounted on the top of the car , 50 Ω feeder line without a matching network after the proper selection of the height and wire diameter , great radiation resistance and high efficiency .

GB/T7287.6-1987红外辐射加热器绝缘电阻测量方法

Measuring method for insulation resistance of infrared heater

渗铝辐射管及电阻带材料

Aluminizing radiant tubes and electroheat belts

以煤为原料，KOH为活化剂，采用微波辐射加热法和电阻炉加热法制备出双电层电容器用活性炭。

Activated carbon for electric double layer capacitors was prepared from coal by activation with KOH through heating by microwave radiation and resistance furnace heating .

开关电容电路的辐射现象及其等效电阻表示（英文）

The Phenomena of Electromagnetic Radiation in Switched - capacitor Circuits and Its Equivalent Resistors ;

本文讨论了矩形脉冲激励的对称驻波天线的能量方向图、总辐射能量、辐射效率和辐射电阻等问题。

The energy pattern , total radiation energy , radiation efficiency and radiation resistance of standing-wave dipole excited by rectangular pulse are discussed .

给出了一定分布电流下，整数倍半波天线辐射场的平均能流密度、辐射总功率及辐射电阻。

The article presents the average energy density , the total radiant power and the radiant resistance of the integral multiple semi-wave antenna with the electrical current of certain distribution .