Publicação
MIMO antenna for mobile terminal
| Resumo: | Nowadays there is a great demand for quality of service, higher bit rate and greater ef ficiency in mobile terminals, leading to technological advances in the world of telecom munications. MIMO technology makes use of multiple antennas in transmission and reception, allowing a higher data transfer rate and greater reliability without the need for extra power and bandwidth. In this MSc dissertation a planar IFA antenna was designed, which operates in the 2 Wi-Fi frequency bands of 2.4 GHz and 5 GHz. A MIMO system with 4 antennas based on the planar IFA, and its performance is analysed through key parameters such as correlation between elements, diversity gain and multiplexing efficiency. After the simulation and analysis of the system, a prototype was fabricated and measured in order to validate the coverage of the designated frequencies. The results achieved show that the designed antenna is feasible for WiFi applications, covering the intended frequency bands. In simulation the antenna obtains a good per formance in terms of MIMO parameters. A size/performance trade-off was applied to the final design, in favour of decreasing the size of the structure to make it possible to use it in smaller size devices. |
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| Autores principais: | Capitão, Paulo Roque Simões |
| Assunto: | MIMO Antenna Correlation Diversity gain Multiplexing efficiency Antena Correlação Ganho de diversidade Eficiência de multiplexagem |
| Ano: | 2021 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Científico do Instituto Politécnico de Lisboa |
| Resumo: | Nowadays there is a great demand for quality of service, higher bit rate and greater ef ficiency in mobile terminals, leading to technological advances in the world of telecom munications. MIMO technology makes use of multiple antennas in transmission and reception, allowing a higher data transfer rate and greater reliability without the need for extra power and bandwidth. In this MSc dissertation a planar IFA antenna was designed, which operates in the 2 Wi-Fi frequency bands of 2.4 GHz and 5 GHz. A MIMO system with 4 antennas based on the planar IFA, and its performance is analysed through key parameters such as correlation between elements, diversity gain and multiplexing efficiency. After the simulation and analysis of the system, a prototype was fabricated and measured in order to validate the coverage of the designated frequencies. The results achieved show that the designed antenna is feasible for WiFi applications, covering the intended frequency bands. In simulation the antenna obtains a good per formance in terms of MIMO parameters. A size/performance trade-off was applied to the final design, in favour of decreasing the size of the structure to make it possible to use it in smaller size devices. |
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