A radar sensor operating at 60 GHz can detect small motions with high range resolution. Thanks to chip technology and a phenomenal reduction in power consumption, these radar sensors are becoming ready for the next big step: integration into tiny, battery-powered devices. This enables a range of smart health applications, from contactless heartbeat sensors to non-invasive fall detection systems.
Batteries? We don’t need no stinking batteries.
We’re still used to thinking that low-power chips for “mobile” or “Internet-of-Things (IoT)” applications will be battery powered…but the near ubiquity of lithium-ion cells powering batteries could be threatened by capacitors and energy-harvesting circuits connected to photovoltaic/thermoelectric/piezoelectric micro-power sources. At…
