2025-05-072025-05-072025-04-07OLIVEIRA, Alexandre Cardoso. Aplicação do método dos elementos finitos para estudo de propagação com polarizações horizontal e vertical em floresta com extensão semi-infinita. Orientador: Karlo Queiroz da Costa. 2025. 72 f. Trabalho de Curso (Bacharelado em Engenharia Elétrica e Biomédica) – Faculdade de Engenharia Elétrica e Biomédica, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2025. Disponível em: https://bdm.ufpa.br/handle/prefix/8090. Acesso em:.https://bdm.ufpa.br/handle/prefix/8090The Amazon region is very vast and composed mainly of rivers and forests, covering distances in the range of hundreds of kilometers. In addition to this, there is the contemporary importance of radiofrequency; it is necessary to study models that describe reality in a sufficiently precise way and with computational feasibility. In this work, we present a model with two-dimensional spatial analysis, simulated in the COMSOL software, which uses the Finite Element Method (FEM) to calculate the magnitude and phase of the waves. In a region on a 2D plane, we place the air as the main propagation medium, with the forest as an obstacle (modeled as a rectangular block) for the observation of reflection, refraction, diffraction and absorption, and the soil and water located on the “floor” of the region. The wave is generated by a current source operating at a frequency of 521 MHz. Four simulations were performed, two for horizontal polarization (electric current source), two for vertical polarization (magnetic current), and each with the source located below or above the height of the block representing the forest.Acesso AbertoMétodo dos Elementos FinitosOndas eletromagnéticasDifração e refração da ondaPropagação em florestaFinite Element MethodElectromagnetic WavesDiffraction and ReffractionPropagation through forestCNPQ::ENGENHARIAS::ENGENHARIA ELETRICATrabalho de Curso - Graduação - MonografiaAttribution-NonCommercial-NoDerivatives 4.0 International