Effects of Coupling Reduction between Multiple Antennas Using Anisotropic Magneto-Dielectric Materials

Yong Jin Kim

doi:10.34163/jkits.2020.15.4.004

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.

Citation status

KCI Citation Counts (0)
REFERENCES (15)
열림/닫힘 버튼
* 2022년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

[journal] K. Y. Kim / 2015 / Trends on 5G communications, Electronics and Telecommunications Trends / ETRI 30(1) : 1~11

[other] J. H. Kim / 2019 / Global competition in 5G / IITP Breaking Issue

[other] IITP / 2018 / 2019 ICT Top 10 issues / : 5~13

[confproc] Y. W. Park / 2015 / 5G new wave towards future societies in 2020s / 5G Open Symposium

[confproc] J. Bang / 2017 / MM-wave phased array antenna for whole-metal-covered 5G mobile phone applications / International Symposium on Antennas and Propagation : 1~2

[web] Sunway / 2016 / Antenna design for mobile phone having full metal cover / http://www.sz-sunway.com.cn/en/Technology/Industry/detail166.html

[journal] D. Huang / 2018 / Eight-band antenna with a small ground clearance for LTE metal-frame mobile phone applications / IEEE Antennas and Wireless Propagation Letters / 17(1) : 34~37

[confproc] S. Indumathi / 2018 / Isolation improvement of MIMO antenna for wideband applications / International Conference on Intelligent Computing and Control Systems (ICICCS) : 412~415

[journal] H. Mosallaei / 2004 / Antenna miniaturization and bandwidth enhancement using a reactive impedance substrate / IEEE Trans. Antennas Propag 52(9) : 2403~2414

[journal] 김용진 / 2017 / Effect of Ferrite Sheet for Antenna Performance on Smart Phone / 한국지식정보기술학회 논문지 / 한국지식정보기술학회 12(2) : 287~293 / 10.34163/jkits.2017.12.2.008

[report] G. M. Yang / 2010 / Loading effects of self-biased magnetic films on patch antennas with substrate /superstrate sandwich structure / IET Microwaves, Antennas & Propagation : 1172~1181

[journal] J. Y. Lee / 2012 / Design of small antennas for mobile handsets using magneto-dielectric material / IEEE Transactions on Antennas and Propagation 60(4) : 2080~2084

[journal] N. Kitahara / 2003 / Magnetic ceramics materials with high permittivity and low loss / IEICE Trans. on Communications J86-C(4) : 450~456

[journal] 김용진 / 2018 / Analysis for Low Interference Effect between Multi-Antennas Using Magneto-Dielectric Material Sheets / 한국지식정보기술학회 논문지 / 한국지식정보기술학회 13(4) : 459~464 / 10.34163/jkits.2018.13.4.006

[journal] J. Park / 2012 / Study of a T-shaped slot with a capacitor for high isolation between MIMO antennas / IEEE Antennas and Wireless Propagation Letters 11 : 1541~1544

KJC Korea
Journal Central

Statistics

Tools

Sharing

Issue List

Citation status