现在，电池正成为电子产品发展的阻碍之一。虽然一些无电池传感器可以在无外部能源的情况下传输少量的数据，但大多数电子产品仍需要笨重的电池来供能。为了解决这个问题，科学家们设计了一款不需要电池的手机，而通过接收附近基站的射频电波来给自身供能。无电池手机通过驻极体话筒的模拟信号来实现拨打电话的功...
Now, the battery is becoming one of the obstacles for the development of electronic products. Although some no battery sensor can transfer a small amount of data in the absence of any external energy, but most electronic products still need heavy batteries to power. In order to solve this problem, the scientists designed a don't need a cell phone, and by receiving the near base station radio frequency waves to power themselves. No cell phones by electret microphone analog signal to realize the call work...
