Energy Harvesting Ambient RF Energy for Self-Sustaining Smart City Environmental Sensors
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Gita Kusuma
1
,
Rian Lubis
2
1, 2Faculty of Engineering, Universitas Gadjah Mada
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Periodic battery replacement for thousands of municipal monitoring devices remains financially and logistically prohibitive. We engineer a multi-band rectifier antenna harvesting ambient RF emissions from 4G/5G base stations, generating steady milliwatt outputs sufficient for intermittent sensor readings and LoRa transmissions.