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It's actually possible to have long range wireless power transmission using beams of EM waves with the thanks to phased arrays of antennas: https://newatlas.co
by 2_listerine_pls 8y ago
It's actually possible to have long range wireless power transmission using beams of EM waves with the thanks to phased arrays of antennas:
https://newatlas.com/cota-ossia-wireless-charging-microwave-phased-array/29217/ https://newatlas.com/cota-ossia-wireless-charging-microwave-...
https://www.geekwire.com/2017/intellectual-ventures-microwaves-metamaterials-beam-power/ https://www.geekwire.com/2017/intellectual-ventures-microwav...
- deepnotderp 8y agoWi-charge uses lasers. Wanna guess how efficient and cheap high power IR lasers and GaAs solar panels are?
- deleted 8y ago[deleted]
- nradov 8y agoSure it's possible. It's just not efficient, practical, reliable, or safe (at high power levels).
- 2_listerine_pls 8y agoMight not be very efficient but it's practical if you need a 24/7 flying drone.
- tzs 8y agoAirbus has a patent on that: https://patents.google.com/patent/FR3012923A1/en https://patents.google.com/patent/FR3012923A1/en
- TeMPOraL 8y agoJesus, how come such things can be patentable?
- nradov 8y agoTethered aerostats or solar power are better solutions than beamed power if you need something flying for a long time.
- deleted 8y ago[deleted]
- deepnotderp 8y agoJust to be clear most of the directional wireless power transfer techniques rely upon a large receiving "aperture" so that the inverse square law's "spread-ened" radiation can be more fully captured. Acceptable RF exposures are far too low for this to work in smartphones and in ultrasonics it's quite dangerous even at MPE of 100dB (OSHA 145dB is for max 15 minutes a day iirc)