| 1. | The research of a novel wideband monopole antenna
宽带振子天线的研究 |
| 2. | Resonant characteristics of a trapezoid meander line monopole antenna
梯形弯折线单极子天线的谐振特性 |
| 3. | And the design method of the circular monopole antenna is presented
给出了圆盘单极超宽带天线的设计方法。 |
| 4. | Folded monopole antenna
折叠单极天线 |
| 5. | The circular monopole antenna is a kind of miniaturized and easy - feed ultra - wideband antenna
本课题所研究的圆盘单极天线是一种小型化、馈电简单的超宽带天线。 |
| 6. | In order to overcome the shortcomings of the monopole antennas , a methods of quasi - fractal is used , which decrease the resonant frequency
为此,对hf频段的单极子天线进行准分形,有效地降低了天线的谐振频率。 |
| 7. | Secondly , through the electromagnetic simulation , the impedance and radiation properties of the circular monopole antenna are thoroughly analyzed
其次,本课题着重分析了圆盘单极超宽带天线的阻抗以及方向图特性。 |
| 8. | Then on the basis of former studies , the miniaturization and planar structure of the circular monopole antenna are respectively analyzed and two feasible schemes are presented
然后在上述研究的基础之上,本课题进一步分析了圆盘单极天线的小型化以及平板化的实现方案。 |
| 9. | However , in hf band , the band of the antennas is narrow , and the input impedance of monopole antenna with limited height undergoes rapid variation with frequency
但是,在hf频段,有限高无加载单极子天线带宽相对较窄,输入阻抗随频率剧烈变化,难于和50的同轴馈线匹配。 |
| 10. | Monopole antennas have been used in many applications , especially in hf antennas , due to their inherent advantage like simple structure , easy to machine and mount , and omnidirectional radiation pattern
单极子天线以其结构简单、易于加工、易于安装及全向辐射等诸多优点得到了广泛的应用, hf天线普遍使用了单极子天线的形式。 |
