The U.S. Research Laboratory (NRL) has transmitted 1.6 kW of energy over a distance of more than a kilometer using
The principle of operation of the installation is quite simple: electricity is converted into microwaves, which are then focused by a narrow beam on the receiver.
Despite doubts, microwave radiation proved to be effective, and the NRL team, led by Christopher Rodenbeck, was tasked with developing a project for Safe and Continuous Power Transmission.
To improve the efficiency of the wireless power transmission systems, the researchers used a radiation frequency of 10 GHz, which reduces thethe level of attenuation of microwaves even in bad weather during heavy precipitation.As a result, losses do not exceed 5%.
Also, operation in the 10 GHz band is allowed assafe for living organisms - animals and people, so there is no need to create a transmission interruption system if a person, bird or animal enters the beam zone.
According to the authors, in the future, such installations may appear at space power plants in Earth orbit in order to supply earth objects with electricity from there.
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