The generation of standing wave patterns in a medium with three different dielectric permittivities. The reflection and transmission along the two interfaces are shown. Since there are infinitely many reflections, only the overall left and right traveling and the total waves are shown in the animation. When the total traveling field is plotted in space at different time instants (as in the bottom figure), the standing wave patterns can easily be observed.
For similar animations involving a single interface, see below:
Standing Wave Pattern (SWR) and Propagation in Lossy Medium
Standing Wave Pattern (SWR) and Propagation in a Lossless Medium
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