| While being a critical part in the electromagnetic theory course for graduate students, periodic structures are in particularly difficult to teach, due to their abstract concepts and cumbersome mathematical manipulations. In order to alleviate the difficulty, a set of visualization course design, the open metallic corrugated surface taken as a typical example, is introduced, where the dispersion relation is recovered and compared with Matlab and CST eigenmode solver for a unitcell, and the field distributions are investigated with a transient full-wave simulation in CST. With such a course design training, graduate students have become more acquainted with the pertinent knowledge, their comprehension for the related concepts and features has been deepened via the visualized results, and their coding and simulation techniques have been sufficiently practiced as well. |
