When computers, cell phones, laptops, iPods, etc. were invented, our antennas came to an end. Now we are used to these devices. In fact, charging all these devices has become a real headache. Each device has its own set of chargers, and since everyone in the family has their cell phone, the drawers are overflowing with all kinds of wires. We are annoyed by the beeps of our cell phone in search of battery charge, can we think? What if our cell phone battery was “self-charged”. YES, witricity (high resonance wireless energy transfer) makes this possible. It ensures that our everyday devices charge themselves, eliminating the need to plug them in. Better yet, thanks to WiTricity, some devices won't need batteries to operate. It uses the principle of magnetism, resonance and electromagnetism. , magnetism, resonance, electromagnetismI. INTRODUCTION Understanding what WiTricity technology is – transferring electrical energy or power remotely wirelessly – is quite simple. Understanding how it works is a little more complex, but it doesn't require an engineering degree. We'll start with the basics of electricity and magnetism, then work our way up to WiTricity technology. Resonance is a property that exists in many different physical systems. It can be thought of as the natural frequency at which energy can most efficiently be added to an oscillating system. length of the swing. The child can raise the swing higher if he correctly coordinates the action of his arms and legs with the movement of the swing. The swing oscillates at its resonant frequency and the child's simple movements efficiently transfer energy to the system. Resonant magnetic coupling: Magnetic coupling occurs when two objects exchange energy...... middle of paper ......, WiTricity's founding technical team was the first to discover that by specially designing the resonators magnetic, strong coupling and very efficient energy exchange could be obtained over distances much larger than the size of the resonator coils, very large distances compared to traditional schemes. Non-radiative technology from WiTricity because the power transfer is non-radiative and relies on near-field magnetic coupling. Many other wireless power transfer techniques rely on radiative techniques, either broadcast or narrow-beam radio transmission (directed radiation), or light waves. Scattered radiation of radio frequency energy is commonly used for wireless information transfer because information can be transmitted over a wide area to multiple users. The power received by each radio or wireless receiver is tiny and must be amplified in a receiver.