The size of new Rx-coil assembly is 42mm*38mm*0.78mm for the function of wireless charging on the back cover of cell phone , The total thickness is 0.78mm much lower than conventional types which are made of rigid shielding materials. It is ideal for wireless charging receiver coil and increase the charging efficiency.
Inductive Coupling: good coupling between two coils, a transmitter coil and a receiver coil. An alternating current in the transmitter coil generates a magnetic field which induces a voltage in the receiver coil. This voltage can be used to power a mobile device or charge a battery.