Ultra-Wideband MIMO Antenna System With High Element-Isolation for 5G Smartphone Application
| Autor: | Wei He, Zhe Chen, Kai-Dong Hong, Xiao-Ting Yuan, Tao Yuan, Han Chongzhi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Computer Science
Computer science 020208 electrical & electronic engineering MIMO Bandwidth (signal processing) General Engineering high isolation Ultra-wideband 020206 networking & telecommunications Ranging sub-6 GHz 02 engineering and technology ultra-wideband 5G communication 0202 electrical engineering electronic engineering information engineering Electronic engineering metal frame General Materials Science lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:TK1-9971 5G Computer Science::Information Theory |
| Zdroj: | IEEE Access, Vol 8, Pp 56281-56289 (2020) |
| ISSN: | 2169-3536 |
| Popis: | In this paper, we presented an ultra-wideband multiple-input multiple-output (MIMO) antenna system with high element-isolation for the application in 5G metal-frame smartphones. We proposed T-shaped and C-shaped slots on the metal frame generating four resonances to enhance the bandwidth. What’s more, we introduce modified H-shaped slots between each antenna-element to improve the element-isolation of MIMO antenna system. As a result, the MIMO antenna system has a wide bandwidth of 58% ranging from 3.3 to 6 GHz and the element-isolation is over 18 dB crossing the effective frequency band. Thanks to the decent element-isolation, the envelope correlation coefficient (ECC) between each antenna-element is below 0.05 providing a reliable anti-interference for the MIMO antenna system. In addition, the measured radiation efficiencies of the MIMO antenna system are higher than 40%. At last, we analyze the effects caused by user’s hands and head to guarantee the robustness of the MIMO antenna system in practical applications. |
| Databáze: | OpenAIRE |
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