八木天线

Yagi antennas have a very broad application. For example, in the military, as well as daily network .

论文 字数：15076 页数：30）摘要：八木天线有着很广泛的应用，比如在军事方面、常生活方面以及网络方面。

"My Antenna is a 3-element Yagi, about 15 meters high from the ground."

使用三元件八木天线，离地15米高。

Each plane carried two directional Yagi antennas (looking something like a small TV antenna), one on each side.

每架飞机装备两个八木指向天线（有点象小型电视所用的天线），每边一个。

Then, the mutual between the driven and the parasitic element is analyzed in detail, and the even-odd-mode method is presented to explain the pattern characteristics of the two-element Yagi microstrip antenna.

最后，在寄生贴片上引入一种槽单元，通过改变槽单元的尺寸和位置，改变了八木天线的频率特性和方向图特性。

With the method of MOM,the gain matrix of antenna array is presented.

用矩量法推导并计算了三元八木天线阵的增益矩阵，进而分析在E面上增益与角度的关系，并给出了增益方向图的仿真结果。

I boughed my two 5-element 20-meter yagis from OH1JT and OH2HE.

我从OH1JT和OH2HE那里买了2副5单元20米波段的八木天线。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。