Theoretical analysis, design and optimization of printed coils for wireless power transmission

Printed coils design and optimization are crucial and important for wireless power transmission (WPT). Currently the methods to design printed coils are left with a number of choices that each has advantages and disadvantages in different situations. In this paper, both electromagnetic theory analysis and equivalent circuit modeling have been used together in theoretical analysis, design and optimization of the printed coils system. With these design procedure, we can obtain the optimal parameters like coupling coefficient K, the self and mutual Inductance and others in printed coils through electromagnetic theory analysis. And the received power and power transmission efficiency of printed coils system can be achieved by the formula derivation and Matlab simulation more precisely than any previous method for the printed coils system in magnetically resonant coupling WPT system consisting of coils and reactive elements.