Visualization scheme of electromagnetic coupling paths and design of experimental teaching system

Based on the characteristics of electromagnetic compatibility related courses, aiming at the problem of lacking a complete and concrete experimental teaching system that can demonstrate the electromagnetic coupling paths in the course of electromagnetic compatibility teaching, Starting from the basic theory of electromagnetic compatibility and referring to the coupling and radiation theories of microstrip lines, a visual experimental teaching system of electromagnetic coupling paths is designed and made, achieving the visualization of field-field, field-circuit, circuit-field and circuit-circuit electromagnetic coupling paths. The experimental teaching system has a simple structure and does not require external interference sources. It can use simple experimental instruments to realize the visual display of four coupling paths at one time, and the coupling effects are obvious and intuitive. The experimental teaching system is helpful to deepen students’ understanding of the coupling channels in the “three elements” of electromagnetic compatibility, and lays a foundation for the subsequent teaching of related courses.