Acoustic Circulator

Lighter, Cheaper Radio Wave Device Could Transform Telecommunications

Lighter, Cheaper Radio Wave Device Could Transform Telecommunications

UT ECE professor Andrea Alù and a team of researchers have achieved a milestone in modern wireless and cellular telecommunications, creating a radically smaller, more efficient radio wave circulator that could be used in cellphones and other wireless devices, as reported in the latest issue of Nature Physics.

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Prof. Andrea Alù and Team Build First Nonreciprocal Acoustic Circulator: A One-Way Sound Device

Prof. Andrea Alù and Team Build First Nonreciprocal Acoustic Circulator: A One-Way Sound Device

A team of researchers led by Prof. Andrea Alù has built the first-ever circulator for sound. The team’s experiments successfully prove that the fundamental symmetry with which acoustic waves travel through air between two points in space (“if you can hear, you can also be heard”) can be broken by a compact and simple device.

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