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In a wireless network, different transmission frequencies work better for different users. That's because the same transmission reaches each user along several different paths; at one frequency, the signals arriving over different paths might reinforce each other, while at another frequency, they might cancel each other out.

Sharing the air

Unused wireless spectrum is getting scarce; MIT researchers are teaching emerging technologies to coexist in what's left

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Graduate student Will Chung displays a hybrid chip being developed in Professor Tomas Palacios' lab. The machine in the background is used to combine the semiconductor materials into one chip.

Two chips in one

MIT team finds a way to combine materials for semiconductor manufacture. The advance helps address the limitations of conventional silicon microprocessors.

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