| 1. | Figure 7 - 1 and subsequent diagrams show only a limited number of radiating elements
图7 - 1和后面的图表只显示了少量辐射单元的情况。 |
| 2. | For each beam position the amount of phase shift is calculated for each radiating element
在每个波束位置为每个辐射单元计算相移量。 |
| 3. | Onli a properly matched antenna system will allow maximum power transfer from the 50 transmission line to the radiating element
只有一个匹配合适的天线系统才能在发射时使能量充分辐射出去。 |
| 4. | Applying the distance approximation to the expression already obtained for the required phase difference between two radiating elements yield equation ( 7 - 1 )
在已经得到的两个辐射单元所需相位差的场方程（ 7 - 1 ）中应用距离近似。 |
| 5. | The electromagnetic energy received at a point in space from two or more closely spaced radiating elements is a maximum when the energy from each radiating element arrives at the point in phase
在空间一点受到两个或更多辐射源照射时，各个辐射源波束到达该点时相位一致则该点接收到的电磁能量最强。 |
| 6. | The previous discussion addressed the theory required to compute the relative phase shift between adjacent radiating elements in order to position the beam of an array - type antenna to a specific angle off of the antenna boresight axis
前面的讨论中给出了计算使阵列天线的波束相对天线视轴线偏移一个给定角度所需的相邻单元间相对相移的理论。 |
| 7. | By building the antenna at a location with a poor effective conductivity of the ground , and by grounding the ends of the feedline / antenna , the signal is forced deep down into the earth , making the earth itself the effective radiating element
通过将天线建造在低导电性的地点，并且将馈线/天线的终端接地，信号被迫深入地球，使得地球本身成为一个有效的辐射单元。 |
| 8. | With compensation of signal ’ s time delay from different radiating element by phase shifters , phased - array antenna can control array beam easily . because there are no mechanical devices for rotating beam , the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters . it improves the tracking velocity of antenna towards the object , and becomes the development trends of weapon system antennas
相控阵天线利用移相器补偿信号到达辐射单元时间的差异,从而控制波束方向;天线没有机械旋转问题,只需改变移相器的设定值,波束便可以在毫秒级内扫描其覆盖空域内的任何地方,提高了天线对目标的跟踪速度,是目前武器系统天线的发展方向。 |
