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Analysis for Low Interference Effect between Multi-Antennas Using Magneto-Dielectric Material Sheets

  • Journal of Knowledge Information Technology and Systems
  • Abbr : JKITS
  • 2018, 13(4), pp.459-464
  • DOI : 10.34163/jkits.2018.13.4.006
  • Publisher : Korea Knowledge Information Technology Society
  • Research Area : Interdisciplinary Studies > Interdisciplinary Research
  • Published : August 31, 2018

Yong Jin Kim 1

1한국폴리텍 IV 대학 대전캠퍼스

Accredited

ABSTRACT

In 2018, the world's first 5G-based pilot service was launched at the Pyeongchang Winter Olympics, and 5G technology is expected to lead the next mobile communication technology. 5G technology requires a transmission speed between 100Mbps and 1Gbps. To meet these requirements, mmWave technology, carrier aggregation technology, and MIMO (Multi Input Multi Output) antenna technology should be applied. The products in which 5G technology will be implemented are portable mobile devices such as smart phones or smart watches. In case of 5G smartphone, the antennas for 5G frequency bands should be added in addition to the existing antennas for cellular bands. However, even if 5G band antennas are additionally applied, there is little change in the external size of the mobile device. Therefore, more antennas must be mounted in the same mounting space, so it is difficult to meet the requirements of 5G technology without increasing the degree of integration. In addition, recently introduced smart phones are designed with a metal frame chassis, which makes it difficult to secure antenna mounting space and radiation performance. Therefore, various researches have been continued to overcome the radiation performance and antenna density of the 5G smartphone. In this paper, we analyze the coupling characteristics between multiple antennas using magnetic dielectric sheets through simulations on mobile devices such as smart phones, and improve the antenna density and radiation performance through the interference reduction effect shown in the analysis results.

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