Schematic of the ultrasonic transducer developed by the research team, integrating two types of metamaterials, together with the directional characteristics of transmitted voice signals. (IMAGE)

Pohang University of Science & Technology (POSTECH)

Schematic of the ultrasonic transducer developed by the research team, integrating two types of metamaterials, together with the directional characteristics of transmitted voice signals.

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Schematic of the ultrasonic transducer developed by the research team, integrating two types of metamaterials, together with the directional characteristics of transmitted voice signals.

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POSTECH

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