Subjects related to electromagnetics in undergraduate electrical engineering courses are normally seen as problematic by students, due to the inherent complexity and abstract concepts. The effect is that students are drawn away from related research areas. Some approaches were developed to enhance the motivation and physical insight of the concepts seen in class. Electromagnetic compatibility is used as a source of real world examples where students see that applied electromagnetics is not a field unrelated with their experiences. In addition to that, final projects with handmade antennas help guide students through a complete design cycle, from analytical formulation to the actual measurement, so that the connections concerning the theory, simulation, prototyping, and measurements are closed. These techniques were applied and provided good results, increasing the understanding and motivation among students toward radio-frequency and antenna-related areas.
Presence of buildings affects the propagation of electromagnetic waves generated by atmospheric discharges, creating different patterns of the fields responsible for induced overvoltages. Since the fields have in general a complex configuration, the study of the phenomenon can be performed, for example, in reduced scale models or by computer simulations, aiming to analyze the behavior of the fields in different situations. This paper presents a 3D electromagnetic computer simulation, using the software CST Design Studio Suit, to evaluate the influence of parameters such as material and height of the buildings and ground characteristics on the horizontal and vertical components of the electric field generated by lightning.
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