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This paper presents a batteryless transmitter for wireless sensor systems. Unlike the conventional battery powered sensor transmitters, our proposed transmitter is powered from a cellular energy-harvesting circuit, a microwave energy transmission technique that has capacity to harvest 3.2 V in 5.5 hours at 0 dBm of incident cellular signals (2 GHz). The transmitter is built around a 2.4 GHz nRF24L01+...
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