A General Review of Different Methods for Wireless Power Transmission
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The concept of wireless power transmission is as old as the electrical power itself. The scientists were interested in this subject since the generation of the electricity and using it. In fact, whenever the electrical power is generated, the matter of transmitting that power is bounded with it too. So far, wired transmission is still the common method because the wireless power transmitting methods have some drawbacks that make them not ready to be widely used.
This paper is a general review on wireless power transmission methods that are invented so far. In this paper, it is focused on 4 methods rather than the others because of their practicality. They are magnetic resonance, capacitive coupling, laser and microwave. First of all, The systems and general performances of each method is explained, then some examples of works done so far around the world for the introduced methods are presented and finally, the methods are compared with each other in several aspects.