首先用差分方法求解了偶极天线上的静态电容分布，并分析了分布电容与天线结构参数之间的关系。
The distributed static capacitance of the dipole antenna was solved by finite difference method. The influences of the antenna configuration coefficients on the distributed capacitance were analyzed.
研究表明，增加引线数目、引线间距和加长顶线长度均可以增加天线系统的静电容，减小输入电抗的模值，并使天线的增益有所改善。
It is hold that one can increase static capacitance, reduce mode of input reactance and enhance the antenna gain by increasing down lead wires, their distances or lengthening the top loading wires.
同时在天线臂之间加入了寄生电容，实现阻抗调整的作用。
We insert a parasitic capacitance patch on the rear of the layer in order to adjust the impedance of antenna.
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.
在双层结构的基础上，结合电容耦合馈电技术，进一步扩展了微带天线的阻抗带宽；
In foundation of the dual-layer structure, combining with capacitive coupled feed technology, the impedance bandwidth of the microstrip antenna has been further expanded;
它们是为地面，天线，探测器塔和一个钢丝向定子的可变电容器。
They are for ground, antenna, detector tap and one wire to the stator of the variable capacitor.
另外地，开关可被用来“接入”和“断开”电容性元件，以便调节天线的带宽。
Additionally, switches may be used to 'switch in' and 'switch out' capacitive elements to adjust the bandwidth of the antenna.
另外地，开关可被用来“接入”和“断开”电容性元件，以便调节天线的带宽。
Additionally, switches may be used to 'switch in' and 'switch out' capacitive elements to adjust the bandwidth of the antenna.
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