Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Hybrid MIMO Antenna Using Interconnection Tie for Eight-Band Mobile Handsets

  • Lee, Wonhee (Department of IT Engineering, Soonchunhyang University) ;
  • Park, Mingil (Department of IT Engineering, Soonchunhyang University) ;
  • Son, Taeho (Department of IT Engineering, Soonchunhyang University)
  • Received : 2015.03.12
  • Accepted : 2015.06.10
  • Published : 2015.07.31
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Abstract

In this paper, a hybrid multiple input multiple output (MIMO) antenna for eight-band mobile handsets is designed and implemented. For the MIMO antenna, two hybrid antennas are laid symmetrically and connected by an interconnection tie, thereby enabling complementary operation. The tie affects both the impedance and radiation characteristics of each antenna. Further, printed circuit board (PCB) embedded type is applied to the antenna design. To verify the results of this study, we designed eight bands-LTE class 12, 13, and 14, CDMA, GSM900, DCS1800, PCS, and WCDMA-and implemented them on a bare board the same size as the real board of a handset. The voltage standing wave ratio (VSWR) is within 3:1 over the entire design band. Antenna isolation is less than -15 dB at the lower band, and -12 dB at the WCDMA band. Envelope correlation coefficient (ECC) of 0.0002-0.05 is obtained for all bands. The average gain and efficiency are measured to range from -4.69 dBi to -2.88 dBi and 33.99% to 51.5% for antenna 1, and -4.74 dBi to -2.97 dBi and 33.45% to 50.49% for antenna 2, respectively.

Keywords

References

  1. S. Zhang, A. A. Glazunov, Z. Ying, and S. He, "Reduction of the envelope correlation coefficient with improved total efficiency for mobile LTE MIMO antenna arrays: mutual scattering mode," IEEE Transactions on Antennas and Propagation, vol. 61, no. 6, pp. 3280-3291, 2013. https://doi.org/10.1109/TAP.2013.2248071
  2. F. H. Chu and K. L. Wong, "Planar printed strip monopole with a closely-coupled parasitic shorted strip for eight-band LTE/GSM/UMTS mobile phone," IEEE Transactions on Antennas and Propagation, vol. 58, no. 10, pp. 3426-3431, 2010. https://doi.org/10.1109/TAP.2010.2055807
  3. S. C. Chen and K. L. Wong, "Bandwidth enhancement of coupled fed on-board printed PIFA using bypass radiating strip for eight-band LTE/GSM/UMTS slim mobile phone," Microwave and Optical Technology Letters, vol. 52, no. 9, pp. 2059-2065, 2010. https://doi.org/10.1002/mop.25406
  4. K. L. Wong, M. F. Tu, T. Y. Wu, and W. Y. Li, "Small-size coupled-fed printed PIFA for internal eight-band LTE/GSM/UMTS mobile phone antenna," Microwave and Optical Technology Letters, vol. 52, no. 9, pp. 2123-2128, 2010. https://doi.org/10.1002/mop.25387
  5. S. J. Lim and T. H. Son, "Hybrid antenna for the all band mobile phone service including LTE," Journal of Korean Institute of Electromagnetic Engineering and Science, vol. 22, no. 7, pp. 737-743, 2011. https://doi.org/10.5515/KJKIEES.2011.22.7.737
  6. M. K. Chun and T. H. Son, "PIFA and IFA hybrid antenna for the data communication terminal," Journal of the Korea Institute of Intelligent Transport Systems, vol. 10, no. 4, pp. 65-70, 2011.
  7. G. Kim and B. Lee, "Metamaterial-based zeroth-order resonant antennas for MIMO applications," Journal of Electromagnetic Engineering and Science, vol. 13, no. 3, pp. 195-197, 2013. https://doi.org/10.5515/JKIEES.2013.13.3.195
  8. Y. Lee, H. Chung, and J. Choi, "Improving the isolation of MIMO antennas using split ring resonators," Journal of Electromagnetic Engineering and Science, vol. 10, no. 4, pp. 303-308, 2010. https://doi.org/10.5515/JKIEES.2010.10.4.303
  9. Y. C. Lu, Y. C. Chan, H. J. Li, and Y. C. Lin, "Design and system performances of a dual-band 4-port MIMO antenna for LTE applications," in Proceedings of IEEE International Symposium on Antennas and Propagation (APSURSI), Spokane, WA, 2011, pp. 2227-2230.
  10. X. Zhao, K. Kwon, and J. Choi, "MIMO antenna using resonance of ground planes for 4G mobile application," Journal of Electromagnetic Engineering and Science, vol. 13, no. 1, pp. 51-53, 2013. https://doi.org/10.5515/JKIEES.2013.13.1.51
  11. S. Blanch, J. Romeu, and I. Corbella, "Exact representtation of antenna system diversity performance from input parameters description," Electronics Letters, vol. 39, no. 9, pp. 705-707, 2003. https://doi.org/10.1049/el:20030495
  12. T. W. Kang, K. L. Wong, and M. F. Tu, "Internal handset antenna array for LTE/WWAN and LTE MIMO operations," in Proceedings of the 5th European conference on Antennas and Propagation (EUCAP), Rome, Italy, 2011, pp. 557-560.
  13. H. Li, Z. T. Miers, and B. K. Lau, "Design of orthogonal MIMO handset antennas based on characteristic mode manipulation at frequency bands below 1 GHz," IEEE Transactions on Antennas and Propagation, vol. 62, no. 5, pp. 2756-2766, 2014. https://doi.org/10.1109/TAP.2014.2308530
  14. R. G. Vaughan and J. B. Andersen, "Antenna diversity in mobile communications," IEEE Transactions on Vehicular Technology, vol. 36, no. 11, pp. 149-172, 1987. https://doi.org/10.1109/T-VT.1987.24115

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