Tag: input impedance

Measuring Lumped Elements Values for WPT coil

Hello. I will explain how to measure and  decide  lumped elements values for WPT coil. Here is the WPT coil that I made for my experiments. The WPT coil consists of a resonant coil and a feed coil with SMA connector. The resonant coil is spiral and has parasitic capacitance between the spiral lines and this capacitance make this coil resonate at LC resonant frequency. The feed coil is a simple circular shape that is connected with SMA connector. Two coils are coupled with each other and the degree of coupling is expressed with mutual inductance M or coupling coefficient k. The equivalent circuit of this coil can be shown […]