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Witricity seminar report12/31/2022 Due to operating in the electromagnetic near field, the receiving devices must be no more than about a quarter wavelengths from the transmitter. The system consists of transmitters and receivers that contain magnetic loop antennas critically tuned to the same frequency. This differs from other methods like simple induction, microwaves, or air ionization. Wireless Electricity transmission is based on strong coupling between electromagnetic resonant objects to transfer energy wirelessly between them. In this form it can be used to replace conventional convection heating based electric stoves. It is observed that this system can also be used as a induction heating unit. We have employed the H – Bridge Inverter configuration to convert DC power to high frequency (100 kHz) which is then radiated with the help of a suitable loop antenna. In this paper, we have discussed the design of a simple and cost-effective system which can enable transmission of power over short distances. Transfer of power by wireless means has been recently demonstrated in the Massachusetts Institute of Technology (MIT). In recent years, the notion of transfer of power using wireless techniques has attracted many researchers. The advantages, disadvantages, biological impacts and applications of WPT are also presented. We also discussed the technological developments in Wireless Power Transmission (WPT). This concept is known as Microwave Power transmission (MPT). In this paper, we present the concept of transmitting power without using wires i.e., transmitting power as microwaves from one place to another is in order to reduce the transmission and distribution losses.
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