Design and simulation of inductive coupler based on Ni-Zn ferrites

The main purpose of this work is to couple the transmission signal into the power line with a low insertion loss. The inductive coupler is simulated by using CST modeling. By means of the non-contact inductive coupler, the carrier signals on the wire with large diameter are coupled into the one with small diameter and then enter the power line carrier handling veneer, so as to realize the coupled transmission of the signals. The structure model of the inductive coupler is established, in which the key technologies are the selection of magnetic core materials and the design of the coupler structure.