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Using field-effect transistors made from carbon nanotube films, five-stage ring oscillators can be fabricated that exhibit an oscillation frequency of up to 5.54 GHz.
Memristor crossbars with array sizes of up to 128 × 64 cells are capable of analogue vector-matrix multiplication and can be used for signal processing, image compression and convolutional filtering.
The external and internal mechanical motion of a person can be directly modulated onto multiplexed radio-frequency signals using near-field coherent sensing, allowing vital signs such as heart rate, blood pressure and respiration rate to be monitored without direct contact to the skin.
