2017-01-302017-01-302015-07-10LAGES, André Vinicius de Souza. Antena MIMO ultra banda larga para comunicações móveis. Orientador: Victor Alexandrovich Dmitriev. 2015. 63 f. Dissertação (Mestrado em Engenharia Elétrica.) - Instituto de Tecnologia, Universidade Federal do Pará, Belém. 2015. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/7490. Acesso em:.https://repositorio.ufpa.br/handle/2011/7490We propose an Ultra-Wideband MIMO Semi-Elliptical Antenna, that operates in all mobile bands between 0.7-6 GHz, and adapted to operate in Free Space (FS) and near human head. The antenna elements are identically and symmetric, which are fed by tapered microstrip line and possess a slanted concave semi elliptical patch to achieve a higher bandwidth using only one side of the substrate. A 45° slanted stub is also present yielding the low frequency resonance. Besides, the ground plane has rounded corners and a cutting-slot at the end of the microstrip line for matching purposes. A T-shaped decoupling was used to improve MIMO correlation. Numerical results shows good isolation and return loss. Multiplex efficiency is higher than - 3 dB in FS and better than - 8 dB near human head for almost all mobile standards within 0.7-6 GHz bandwidth. This antenna is a very attractive solution for Ultra-wideband MIMO applications.Acesso AbertoAntena de banda ultralargaSistemas de comunicação em banda largaMIMO - Múltiplas entradas e saídasSub inclinadoEficiência de multiplexaçãoUWB - Ultra-wide bandMIMO - Multiple-input-multiple-outputShort-range communicationsElliptical monopoleHigh-efficienceDissertaçãoCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::TELECOMUNICACOES