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XeThru Sensor Emissions: an in-depth look at radar safety regulations

Invented some 80 years ago, radar systems have been traditionally associated with aviation, vessels at sea, and weather forecasting. The applications since then have widely expanded and nowadays, radar-based technology can find its place in the heart of a family’s home. Radar, however, has been an area of concern for many people, and many have misconceptions on the safety level of its emissions. Our latest application note, XeThru Sensor Emissions, tackles the "is radar safe?" common question and looks into radar safety regulations to ultimately prove that radar technology is indeed no more harmful than the daily-used mobile phone or laptop.

Figure 1: XeThru sensor emissions app note

Novelda has taken its novel radar technology not only to the doorstep of the smart home, but into the bedroom as a health and sleep monitoring device. The core of this technology is the Ultra-Wide Band (UWB) radar SoC which measures distance to objects with high sensitivity and accuracy. This is done by emitting very low energy impulses and measuring the time of flight. The amount of energy allowed to send is defined by international regulatory agencies, such as The International Commission on Non-Ionizing Radiation Protection (ICNIRP). The application note explores these regulatory safety limits and shows the measured results from the X2M03 module. After thorough evaluation of the electromagnetic safety of the XeThru technology, the energy level transmitted from the XeThru sensor, unlike traditional radars, is less than any electronic device is allowed to transmit unintentionally. In fact, as seen below, the radiated output power is 486 times below the limit of the applicable regulations. A comparison is also made with other more recognized electromagnetic transmitters such as WIFI and Bluetooth, and it is found that having a XeThru module on your night stand emits as much energy as a 5GHz WiFi router located 44 meters from your bed.

XeThru radar emissions app note
Table 1: ICNIRP compliance - the X2M03 comparison with other technologies

Visit our community and download our application note for an in-depth look at this research and how the XeThru sensor was proven to be completely harmless according to ICNIRP's research on electromagnetic radiation.

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