A cm-Scale 2.4-GHz Wireless Energy Harvester With NanoWatt Boost Converter and Antenna-Rectifier Resonance for WiFi Powering of Sensor Nodes
| Autor: | Arun Natarajan, Jian Kang, Kamala Raghavan Sadagopan, Yogesh Ramadass |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
business.industry
Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020208 electrical & electronic engineering RF power amplifier Electrical engineering Resonance 020206 networking & telecommunications 02 engineering and technology 7. Clean energy Rectifier Boost converter Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Wireless Electrical and Electronic Engineering Antenna (radio) business |
| Zdroj: | IEEE Journal of Solid-State Circuits. 53:3396-3406 |
| ISSN: | 1558-173X 0018-9200 |
| Popis: | The widespread use of WiFi in the 2.4-GHz ISM band creates the potential for RF powering using WiFi radios. This paper presents the design of a cm-scale RF-energy harvester including antenna, rectifier, and dc–dc boost converter for RF powering in the 2.4-GHz ISM band. The rectifier and boost converter are designed while considering cold-start operation and nanowatt-scale available power from the rectifier for RF incident power $\times $ and ~2 $\times $ improvement in range compared to prior art. Measurements using a commercial WiFi TX demonstrate the ranges of up to 1.25 m for 14-dBm output power with 1.3% TX duty-cycling in WiFi access-point mode, demonstrating the feasibility of powering sensors from RF power beacons in the 2.4-GHz ISM band as well as from background WiFi transmissions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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