PIN Diode switch is a kind of widely used microwave semiconductor control device. High frequency, broadband, multi through switch are the places where design difficulties lie.

PIN开关是一种广泛采用的微波半导体控制器件，高频、宽带、多掷一直是其设计难点所在。

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Jobs, of course, would lead Apple through a switch, publicly announced in 2005, from PowerPC processors to Intel chips.

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In such a sphere, you could be working on the same project and switch through any number of devices, before you switch to work on another task sphere.

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For instance, the U.S. intelligence community can target phone calls of an Iraqi citizen overseas, but that person's call to someone in Pakistan might be routed through a telecommunications switch in the United States.

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