首先以PIFA天线为基本结构，设计了能通过控制二极管开关状态来改变方向图的可重构天线，并实现了天线带宽的拓展。
Based on the PIFA structure, a pattern reconfigurable antenna can be controlled by RF diode switch is designed, with bandwidth expanded at the same time.
如果你实现了上述两点，你还需要一个控制每个二极管的驱动，这意味着需要更多的电路和固件。
Once you've got that, you also need a driver to control the individual diodes, which means additional circuitry and firmware.
这个新镜头，底部比顶部更薄，通过切换镜头底部边缘的发光二极管的开和关，控制进入到观众的眼睛的光线。
The new lens, which is thinner at the bottom than at the top, steers light to a viewer's eyes by switching light-emitting diodes along its bottom edge on and off.
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