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This paper presents the first monolithically integrated RF-power harvesting 71 GHz wireless temperature sensor node in 65nm CMOS technology, containing a monopole antenna, a 71 GHz RF power harvesting unit with storage capacitor array, an End-of-Burst monitor, a temperature sensor and an ultra-low-power transmitter at 79 GHz. At 71 GHz, the RF to DC converter achieves a power conversion efficiency...
Wireless Sensor Networks (WSNs) are fundamentally limited by their energy storage resources and the power they obtain from the environment. The success of wireless sensor networks and their pervasive use is constrained by the energy supply which, generally is provided by batteries, a finite resource. Energy harvesting must hence be taken into account to grant a long time operational life, solar energy...
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