발간년도 : [2020]
| 논문정보 |
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| 논문명(한글) |
[Vol.15, No.4] Effects of Coupling Reduction between Multiple Antennas Using Anisotropic Magneto-Dielectric Materials |
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| 논문투고자 |
Yong-Jin Kim |
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| 논문내용 |
The world's first 5G mobile service for general subscribers was commercialized in Korea in 2019, and will be commercialized worldwide-scale after this year. As a core infrastructure for the hyper-connected society in the era of the 4th industrial revolution, 5G technology requires more than 1000 times faster transmission speed than 4G LTE. In order to satisfy these requirements, mmWave technology, carrier aggregation technology, and MIMO (Multi Input Multi Output) antenna technology should be applied. The products that 5G technology required above, will be implemented are portable mobile devices such as smart-phones or smart-watches. In case of a smart-phone to which 5G is applied, 5G broadband multi-antenna must be additionally mounted in addition to the existing 2G/3G/4G cellular band antenna for high-speed multimedia support. The 5G frequency band must be additionally implemented in the existing antenna space of a smartphone. So, the antenna integration of 5G smaart-phone increases the coupling between multiple antennas and degrades antenna radiation performance. Therefore, antennas with 5G additional frequency band must be built in the same mounting space, so that antenna density must be increased. In addition, such an increase in the degree of antenna integration increases the coupling between multiple antennas, thereby deteriorating the antenna radiation performance. Therefore, various researches are continuously studied to improve the integration and the radiation performance of the multiple antenna simultaneously. In this paper, it is studied that anisotropic magneto-dielectric materials are effective in improving the coupling reduction between multiple antennas. It is proposed a method that can be applied to 5G MIMO antenna to satisfy the performance requirements. |
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