Far away from the  antennas, the waves join to form a wave front that is a planar wave.

远离天线的地，会汇聚在起形平面的前。

They can even send waves from all directions, so they form circular wave fronts and then all the wave energy is channeled into one spot they call the bullseye.

它们甚至可以从各向发送，因此它们形圆形阵面， 然后所有能量都被引导到被它们称为“靶心” 的点。

Just as before, by continuously changing the timing of when  each wave peak is emitted by each antenna, we can change the angle at which the wave front  is formed, essentially steering the beam in one direction or another.

与以前样， 通过不断改变每天线发射每峰的时间，我们可以改变前形的角度，本质上将光束引导到向或另向。