ABSTRACT
The efficiency of a wireless power transfer system is also reduced by the mismatch between the transmitter and receiver sections. Impedance matching is defined as the process of making one impedance look like another using circuit design methods with the objective of achieving optimum system performance. Most of the time impedance matching reduces to matching load impedance to the internal impedance of a circuit driving the system or to source impedance. Often some authors use the term ‘compensators’ to refer to impedance matching. The maximum power transfer theorem shows that to transfer maximum amount of power from a source to a load, the load impedance should match the source impedance. Applications in which the load impedance is a variable over a range require a matching network whose parameters can be adjusted or tuned. Impedance matching is used in electric power transmission and distribution systems. Power lines are basically transmission lines which can be modelled as RLC sections.
