导出了圆环天线的辐射电阻公式。
The formula of radiation resistance of the antenna is derived.
螺旋天线不仅在宽频带上具有近乎一致的电阻性输入阻抗，而且在同样的频带上按超增益端射阵的波瓣图工作。
Helical antenna has not only almost identical to the resistive input impedance in broad bandwidth, but also works by the end of super-gain front lobed map in the same frequency band.
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.
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.
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.
高温超导(HTS)体由于具有较低的表面电阻，在天线应用中，它可以提高天线的效率。
The high temperature superconductors (HTS) bearing low surface resistance can be used to raise the efficiency of antenna.
在有限长的偶极天线上，采用分布电阻加载法，实现行波电流分布，展宽天线的工作频带。
Continuous resistive loading is used to extend antenna operating band in order to realize traveling-wave current distribution on a finite length antenna.
实际测试结果显示，电阻加载渐变槽线天线拖尾脉冲的幅度非常低。
A very low ring of the antenna has been demonstrated with measurement results.
传统的电小天线其特点是低输入电阻和低效率。
The small electrical antenna is characteristic of a low input impedance and a low efficiency.
在采用本发明的线圈部件的线圈天线系统中，不增大直流电阻值而能够将Q值调整为所期望的值。
In a coil antenna system using the coil component, the value of Q can be adjusted to a desired level without an increase in a DC resistance value.
在采用本发明的线圈部件的线圈天线系统中，不增大直流电阻值而能够将Q值调整为所期望的值。
In a coil antenna system using the coil component, the value of Q can be adjusted to a desired level without an increase in a DC resistance value.
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