Imec, a research and innovation hub in nanoelectronics and digital technologies, announces an exceptional 8 GHz radar transceiver designed as an efficient, low-cost solution for presence detection in smart building solutions. The power consumption of the radar is below 1mW, which is 100 times lower than other solutions, and is capable of detecting even micro-movements from human respiration, up to a distance of 15 meters. This performance makes it a breakthrough solution for low-cost battery-powered presence-detection and people counting applications in offices, hospitals and on industrial sites. The new UWB 8 GHz radar was developed by imec the Netherlands (within the framework of Holst Centre, Eindhoven).
The new transceiver is compliant with FCC and ETSI spectral regulations for the UWB frequency range, limiting the radiation to -41dBm/MHz. This energy density is well below the noise floor of mainstream commercial systems, and therefore, this radar can safely be used for 24/7 people presence detection without health concerns. The power consumption of the transciever IC is less than 1mW, at least 100 times less than comparable state-of-the-art solutions. With that, it is able to discern movements and vital signs – breathing and heartbeats – up to 15 meters, which is a record for UWB radars. The imec chip was designed in standard 40nm CMOS and has a die size of 1.8mm2.