Mmwave sensing

<p><a href="/facts/Extremely_high_frequency/l28Grdmp">Millimeter wave</a> (mmWave) sensing is a non-contact system of using mmWave radar <a href="/facts/Sensor/RN8SXbjs">sensors</a> to measure movement, acceleration, and angles as small as a fraction of a millimeter. This system requires a mmWave radar sensor to transmit and receive pulses of millimeter electromagnetic wave energy, detecting targets and motion from the reflections it receives back. Additional components such as converters, <a href="/facts/Signal_processing/Npaja6zb">signal processors</a> and other embedded technologies create new use cases and improve performance of the system. Current applications for this technology include human and animal movement tracking, <a href="/facts/Human_presence_detection/mheJaTrt">human presence detection</a>, and detection of <a href="/facts/Vital_signs/kzxCHG45">vital signs</a> for use across automotive, meteorological, medical and pet health industries and is often an alternative to wearable-based technologies for the same uses.
</p><p>Compared to sensing technologies using other <a href="/facts/Radio_frequency/aWku7h4R">radio frequencies</a> in the <a href="/facts/Electromagnetic_spectrum/24LARvFY">electromagnetic spectrum</a> such as <a href="/facts/Infrared/44XdJNcc">infrared</a> or <a href="/facts/Ultra-wideband/TQ4k9z8g">ultra-wideband</a>, mmWave uses 30 to 300 gigahertz (GHz). Typical mmWave sensors use the 24-, 60- and 77-GHz band each with their own benefits for specific applications.
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Mmwave sensing open-in-new

Mmwave sensing