KSII Transactions on Internet and Information Systems (TIIS)

Korean Society for Internet Information (한국인터넷정보학회)
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A High Isolation 4 by 4 MIMO Antenna for LTE Mobile Phones using Coupling Elements

  • Lee, Won-Woo (Mobile Communications, LG Electronics) ;
  • Yang, Hyung-kyu (Electronic, Electrical, Control & Instrumentation Engineering, Hanyang University) ;
  • Jang, Beakcheol (The department of Media Software, Sangmyung University)
  • Received : 2017.03.28
  • Accepted : 2017.08.09
  • Published : 2017.12.31
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Abstract

In this paper, we develop a simple but very effective 4 by 4 Multiple-Input Multiple-Output (MIMO) antenna system for mobile phones consisting of different types of antennas to achieve low correlation property at the frequency ranges of 1710 to 2170 MHz, which covers wide LTE service bands, from band 1 to band 4. The proposed antenna system consists of two pair of antennas. Each pair consists of a planar inverted-F antenna (PIFA) and a coupling antenna which has the property of the loop. The use of two different antenna types of IFA and a coupling achieves high isolation. Proposed antenna system occupies relatively small area and positions at the four corners of a printed circuit board. The gap between the two antennas is 4 mm, in order to realize the good isolation performance. To evaluate the performance of our proposed antenna system, we perform various experiments. The proposed antenna shows a wide operating bandwidth greater than 460 MHz with isolation between the feeding ports higher than 17.5-dB. It also shows that the proposed antenna has low Envelop Correlation Coefficient (ECC) values smaller than 0.08 over the all desired frequency tuning ranges.

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References

  1. G. Xiaohu, Z. Ran, W. Haichao, Z. Jing, J. Minho, "Multi-user Massive MIMO Communication Systems Based on Irregular Antenna Arrays," IEEE Transactions on Wireless Communications, Vol.15, No.8, pp.5287-5301, Aug. 2016. https://doi.org/10.1109/TWC.2016.2555911
  2. C. A. Daniel, M. Taras, L. F. A. Andre, M. Tarcisio, C. M. M. João, J. Minho, "Massive MIMO: [6] S. M. A. Nezhad and H. R. Hassni, "A novel triband E-shapeSurvey and Future Research Topics," IET Communications, Vol.10, No.15, pp.1938-1936, Oct. 2016. https://doi.org/10.1049/iet-com.2015.1091
  3. X. Ge, H. Wang, R. Zi, Q. Li, Q. Ni "5G Multimedia Massive MIMO Communications Systems," Wireless Communications and Mobile Computing, vol. 16, no. 11, pp. 1377-1388, Jun. 2016. https://doi.org/10.1002/wcm.2704
  4. P. Vainikainen et al., "Recent Development of MIMO Antennas and Their Evaluation for Small Mobile Terminals," in Proc. of 17th Int. Conf. Microw., Radar, Wireless Commun., pp. 1-10, Wroclaw, Poland, May 19-21, 2008,
  5. Koh K-J Kun-Hui Lin, Lih-Tyng Hwang, Chung-Yi Hsu, Shun-Min Wang, and Fa-Shian Chang, "A Compact Printed UWB MIMO Antenna with a 5.8GHz Band Notch," in Proc. of 2014 International Symposium on Antennas and Propagation (ISAP), pp. 419-420, Dec. 2014.
  6. S. M. A. Nezhad and H. R. Hassni, "A novel triband E-shaped printed monopole antenna for MIMO application," IEEE Antennas Wireless Propag. Lett., vol. 9, pp. 576-579, 2010. https://doi.org/10.1109/LAWP.2010.2051131
  7. J. Huan-Jynu, K. Yeh-Chun, W. Kin-Lu, "High-isolation WLAN MIMO laptop computer antenna array," in Proc. of 2012 Asia-Pacific Microwave Conference Proceedings (APMC), pp. 319-321, Dec. 2012.
  8. Computer Simulation Technology (CST) Microwave Studio Suite 2014 [Online]. Available: http://www.cst.com.
  9. Microwave Technologies Group [Online]. Available: http://mtginc.co.kr.
  10. I. Szimi, G. F. Pedersen, S. C. Del Barrio, M. D. Foegelle., "LTE Radiated Data Throughput Measurements, Adopting MIMO 2x2 Reference Antennas," in Proc. of IEEE Vehicular Technology Conference, pp. 1-5, Fall, 2012.
  11. R. G. Vaughan and J. B. Andersen, "Antenna diversity in mobile communications," IEEE Transactions Vehicular Technology, vol. 36, no. 4, pp. 149-172, Nov. 1987. https://doi.org/10.1109/T-VT.1987.24115