2026-04-272026-04-272026-02-27ROZAL, Erik Chagas. Desenvolvimento de circulador de 3 portas baseado em cristal fotônico com ressonador de hexaferrite. Orientador: Victor Dmitriev. 2026. 48 f. Trabalho de Curso (Bacharelado em Engenharia Elétrica e Biomédica) – Faculdade de Engenharia Elétrica e Biomédica, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2026. Disponível em: https://bdm.ufpa.br/handle/prefix/9482. Acesso em:.https://bdm.ufpa.br/handle/prefix/9482In this work, a novel three-port circulator based on two-dimensional photonic crystals with a triangular lattice is presented. The circulator is based on a hexaferrite core, enabling operation with no need for external magnetization due to the intrinsic magnetization of the resonant material. In the theoretical part of this work, an approximate analytical method for the design of hexaferrite resonators is proposed. Through adjustments made to the resonant cavity that compose the proposed circulator, high isolation levels, low insertion losses, and excellent bandwidth were achieved. At the central frequency of 102 GHz, the designed circulator exhibits an operational bandwidth of approximately 1.4 GHz, considering an isolation level of −15dB and insertion losses lower than −1dB.Acesso AbertoNanofotônicaDispositivos não recíprocosCristais fotônicosCirculadorHexaferriteNanophotonicsNon-reciprocal devicesPhotonic crystalsCirculatorHexaferriteCNPQ::ENGENHARIAS::ENGENHARIA ELETRICATrabalho de Curso - Graduação - Monografia