Wireless Power Transmission Powering Miniaturized Low Power IoT devices: A Revie
| Autor: | Michele Magno, Louis Meile, Anja Ulrich |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Battery (electricity)
Power transmission business.industry Computer science 020208 electrical & electronic engineering Electrical engineering 020206 networking & telecommunications 02 engineering and technology USable Radio frequency power transmission Power (physics) Small form factor 0202 electrical engineering electronic engineering information engineering Wireless business Energy harvesting |
| Zdroj: | IWASI |
| DOI: | 10.1109/iwasi.2019.8791433 |
| Popis: | Energy Harvesting (EH) is a mature solution to extend the short lifetime of many wireless sensor nodes and IoT devices. However, miniaturizing EH devices to supply low power and small form factor IoT devices is still challenging and not always effective. In fact, EH from the miniaturized is more challenging due to strict constraints in terms of size, weight, and cost. Among other technologies, wireless power transmission is growing of popularity due to the fact that it can be controlled and it is less unpredictable than environments sources. This paper presents a review of technologies for wireless power transmission that can supply cm-scale low power IoT devices. Additionally, this paper provides in-field evaluation with mm-scale antennas of radio frequency power transmission using a commercial system: Powercast. Experimental results focus on evaluating the power flowing in the battery, which also includes the conversion losses, for different distances and antennas. Infield evaluation shows that it is possible to achieve mW of usable power to one meter and hundreds of µW at few meters. Those powers are enough for a wide range of low power and miniaturized IoT devices and IoT applications. In conclusion, this paper shows that RF transmission is an effective and alternative way to supply perpetually low power IoT devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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