The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Design and Implementation of High Efficiency Slot Antenna for the Metal Notebook Dual Band WiFi MIMO System

메탈 노트북 Dual 밴드 WiFi MIMO용 고효율 슬롯안테나 설계 및 구현

  • Yoo, Younghyeouk (Dept. of IT Engineering, Soonchunhyang University) ;
  • Lee, Moonhee (Dept. of IT Engineering, Soonchunhyang University) ;
  • Son, Taeho (Dept. of IT Engineering, Soonchunhyang University)
  • Received : 2018.07.09
  • Accepted : 2018.08.26
  • Published : 2018.10.01
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Abstract

MIMO(Multiple Input Multiple Output) slot antenna that operates on the dual WiFi band(2.401~2.495GHz, 5.18~5.825GHz), in this paper, was studied. The basic theory for the slot design is based on the coupling between adjacent slot, and slots are fed by the each microstrip lines. Two slot antennas for the MIMO operation are located on the left and the right side of top of the metal notebook, and grounds between a notebook and two microstrip feeding lines are connected. Measurement of return loss showed under -6dB on entire design band, and isolation was below than -30dB. Radiation efficiency, average gain and peak gain for the left and the right slot were measured in the anechoic chamber, and showed good performances as 57.25%, -2.42dBi, 5.64dBi and 55.35%, -2.61dBi, 6.42dBi for the 2.4GHz band and 55.89%, -2.58dBi, 7.3dBi and 53.79%, -2.8dBi, 7.54dBi for the 5GHz band.

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References

  1. G. Hess, M. Marsan, "Operational Characteristics of Transportable In-building Propagation", 1994 IEEE GLOBECOM. Communications: The Global Bridge, Vol. 1, pp. 37-47, Aug. 2002.
  2. D. Liu, B.-P. Gaucher, E.-B. Flint, T.-W. Studwell, H. Usui, T.-J. Beukema, "Developing integrated antenna subsystems for laptop computer", IBM Journal of Research and Development, Vol. 47, pp. 355-367, mar. 2003. https://doi.org/10.1147/rd.472.0355
  3. D. Liu, E. Flint, B. Gaucher, "Integrated laptop antennas-design and evaluation", IEEE Antenna and Propagation Society International Symposium(APSIS), Vol. 4, pp. 56-59 Aug. 2002.
  4. Y. Li, Z. Zhang, Z. Li, J. Zheng, Z. Feng, "High-permittivity substrate multiresonant antenna inside metallic cover of laptop computer", IEEE Antennas Wireless Propagation Letters, Vol. 10, pp. 1092-1095, Sept. 2011. https://doi.org/10.1109/LAWP.2011.2169034
  5. G. Jerzy, R.-S. Yahya, A.-M. Antonio, P. Custodio, "Quasi-Omnidirectional back-to-back E-Shaped Patch Antenna for Dual-Band 2.4/5.2GHz Laptop Integrated Wireless Interface", IEEE 2006 First European Conference on Antennas and Propagation, pp. 1-5, Aug. 2008.
  6. S.-C. Chen, J.-Y. Sze, H.-J. Jian, W.-S. Cai, "Loop Antenna for the LTE/WWAN Metal-casing Laptop Computer", IEEE International Conference on Computational Electromagnetics (ICCEM), pp. 150-152, Apr. 2017.
  7. K,-L. Wong, L.-C. Lee, "Multiband printed monopole slot antenna for WWAN operation in the laptop computer", IEEE Trans on Antennas Propagation, Vol. 57, pp. 324-330, Mar. 2009. https://doi.org/10.1109/TAP.2008.2011391
  8. C.-T. Lee, S.-W. Su, S.-C. Chen, and C.-S. Fu, "Low-Cost, Direct-Fed Slot Antenna Built in Metal Cover of Notebook Computer for 2.4/5.2/5.8-GHz WLAN Operation", IEEE Antennas and Propagation Society (APS ), Vol. 65, pp. 2677-2682, May 2017. https://doi.org/10.1109/TAP.2017.2679070
  9. S.-C. Chen, C.-S. Fu, "Switchable Long-Term Evolution/Wireless Wide Area Network/Wireless Local Area Network Multiple-Input and Multiple-Output Antenna System for Laptop Computers", IEEE Access, Vol. 5, pp. 9857-9865, May 2017. https://doi.org/10.1109/ACCESS.2017.2705739
  10. S.-C. Chen, P.-W. Wu, C.-G. Hsu, and J.-Y. Sze, "Integrated MIMO Slot Antenna on Laptop Computer for Eight-Band LTE/WWAN Operation", IEEE Antennas and Propagation Society (APS), Vol. 66, pp. 105-114, Dec. 2017.
  11. F.-R. Hsiao, and L.-J. Huang, "Dual-Band Slot Antenna Suitable for Ultrabook Application with Metal Housing", IEEE International Symposium on Antenna and Propagation (ISAP), pp. 317-318, Jan. 2015.
  12. K.-H. Lee, "WiFi MIMO Antenna for Metal Body Note PC", SkyCross Korea Co., Ltd Technical Report, Jan. 2016.