Vol. 53
Latest Volume
All Volumes
PIERB 105 [2024] PIERB 104 [2024] PIERB 103 [2023] PIERB 102 [2023] PIERB 101 [2023] PIERB 100 [2023] PIERB 99 [2023] PIERB 98 [2023] PIERB 97 [2022] PIERB 96 [2022] PIERB 95 [2022] PIERB 94 [2021] PIERB 93 [2021] PIERB 92 [2021] PIERB 91 [2021] PIERB 90 [2021] PIERB 89 [2020] PIERB 88 [2020] PIERB 87 [2020] PIERB 86 [2020] PIERB 85 [2019] PIERB 84 [2019] PIERB 83 [2019] PIERB 82 [2018] PIERB 81 [2018] PIERB 80 [2018] PIERB 79 [2017] PIERB 78 [2017] PIERB 77 [2017] PIERB 76 [2017] PIERB 75 [2017] PIERB 74 [2017] PIERB 73 [2017] PIERB 72 [2017] PIERB 71 [2016] PIERB 70 [2016] PIERB 69 [2016] PIERB 68 [2016] PIERB 67 [2016] PIERB 66 [2016] PIERB 65 [2016] PIERB 64 [2015] PIERB 63 [2015] PIERB 62 [2015] PIERB 61 [2014] PIERB 60 [2014] PIERB 59 [2014] PIERB 58 [2014] PIERB 57 [2014] PIERB 56 [2013] PIERB 55 [2013] PIERB 54 [2013] PIERB 53 [2013] PIERB 52 [2013] PIERB 51 [2013] PIERB 50 [2013] PIERB 49 [2013] PIERB 48 [2013] PIERB 47 [2013] PIERB 46 [2013] PIERB 45 [2012] PIERB 44 [2012] PIERB 43 [2012] PIERB 42 [2012] PIERB 41 [2012] PIERB 40 [2012] PIERB 39 [2012] PIERB 38 [2012] PIERB 37 [2012] PIERB 36 [2012] PIERB 35 [2011] PIERB 34 [2011] PIERB 33 [2011] PIERB 32 [2011] PIERB 31 [2011] PIERB 30 [2011] PIERB 29 [2011] PIERB 28 [2011] PIERB 27 [2011] PIERB 26 [2010] PIERB 25 [2010] PIERB 24 [2010] PIERB 23 [2010] PIERB 22 [2010] PIERB 21 [2010] PIERB 20 [2010] PIERB 19 [2010] PIERB 18 [2009] PIERB 17 [2009] PIERB 16 [2009] PIERB 15 [2009] PIERB 14 [2009] PIERB 13 [2009] PIERB 12 [2009] PIERB 11 [2009] PIERB 10 [2008] PIERB 9 [2008] PIERB 8 [2008] PIERB 7 [2008] PIERB 6 [2008] PIERB 5 [2008] PIERB 4 [2008] PIERB 3 [2008] PIERB 2 [2008] PIERB 1 [2008]
2013-07-29
Low Mutual Coupling Between MIMO Antennas by Using Two Folded Shorting Strips
By
Progress In Electromagnetics Research B, Vol. 53, 205-221, 2013
Abstract
This paper presents a compact dual-band multiple input multiple output (MIMO) antenna with low mutual coupling, operating in the 2.4 GHz band (2.4-2.485 GHz) and 5.5 GHz band (5.15-5.85 GHz). The proposed antenna system consists of two antenna elements located at the top two corners of FR4 substrate (PCB). Each element dimension is reduced substantially by employing a folded structure and slots on the top patch plate, so that it takes up a small volume of 12 × 9 × 6 mm3. To enhance port-to-port isolation and efficiency of each antenna, an additional non-radiating folded shorting strip is connected between each antenna element and ground plane of PCB. The measured isolation values are lower than -28 dB over the lower WLAN band (2.4-2.485 GHz) and better than -26 dB (-30 dB in most of the band) across the higher WLAN band (5.15-5.85 GHz). The improvement in antenna's efficiency caused to raise up 1 dB of effective diversity gain of MIMO system. Furthermore S-parameters, radiation patterns and diversity performance characteristics are provided.
Citation
Hari Shankar Singh, Bhaskara Reddy Meruva, Gaurav Kumar Pandey, Pradutt Kumar Bharti, and Manoj Kumar Meshram, "Low Mutual Coupling Between MIMO Antennas by Using Two Folded Shorting Strips," Progress In Electromagnetics Research B, Vol. 53, 205-221, 2013.
doi:10.2528/PIERB13052305
References

1. Vaughan, R. G. and J. B. Anderson, "Antenna diversity in mobile communications," IEEE Trans. Veh. Tech., Vol. 36, No. 4, 149-172, Nov. 1987.
doi:10.1109/T-VT.1987.24115

2. Foschini, G. J. and M. J. Gans, "On limits of wireless communication in a fading environment when using multiple antennas ," Wireless Pers. Commun., Vol. 6, No. 3, 311-335, 1998.
doi:10.1023/A:1008889222784

3. Sonkki, M. and E. Salonen, "Low mutual coupling between monopole antennas by using two slots," IEEE Antennas Wireless Propag. Lett., Vol. 9, 138-141, 2010.
doi:10.1109/LAWP.2010.2044476

4. Meshram, M. K., R. K. Animeh, A. T. Pimpale, and N. K. Nikolova, "A novel quad-band diversity antenna for LTE and Wi-Fi applications with high isolation," IEEE Trans. Antennas Propag., Vol. 60, No. 9, 4360-4371, Sep. 2012.
doi:10.1109/TAP.2012.2207044

5. Chiu, C.-Y., C.-H. Cheng, R. D. Murch, and C. R. Rowell, "Reduction of mutual coupling between closely-packed antenna elements," IEEE Trans. Antennas Propag., Vol. 55, No. 6, 1732-1738, Jun. 2007.
doi:10.1109/TAP.2007.898618

6. Wu, T.-Y., S.-T. Fang, and K.-L. Wong, "A printed diversity dual band monopole antenna for WLAN operation in the 2.4 and 5.2 GHz bands," Microwave Opt. Technol. Lett., Vol. 36, No. 6, 436-439, Mar. 2003.
doi:10.1002/mop.10784

7. Zhang, S., Z. Ying, J. Xiong, and S. He, "Ultra-wide band MIMO/diversity antennas with a tree-like structure to enhance wideband isolation," IEEE Antennas Wireless Propag. Lett., Vol. 8, 1279-1283, 2009.
doi:10.1109/LAWP.2009.2037027

8. Weng, L. H., Y. C. Guo, X. W. Shi, and X. Q. Chen, "An overview on defected ground structure," Progress In Electromagnetics Research B, Vol. 7, 173-189, 2008.
doi:10.2528/PIERB08031401

9. Makinen, R., V. Pynttari, J. Heikkinen, and M. Kivikoski, "Improvement of antenna isolation in hand-held devices using miniaturized electromagnetic band-gap structures," Microw. Opt. Technol. Lett., Vol. 49, No. 10, 2508-2513, Oct. 2007.
doi:10.1002/mop.22761

10. Hsu, C.-C., K.-H. Lin, H.-L. Su, H.-H. Lin, and C.-Y. Wu, "Design of MIMO antennas with strong isolation for portable applications," Proc. IEEE AP-S, 1-4, Charleston, SC, Jun. 2009.

11. Diallo, A., C. Luxey, P. Le Thuc, R. Staraj, and G. Kossiavas, "Study and reduction of the mutual coupling between two mobile phone PIFAs operating in the DCS1800 and UMTS bands," IEEE Trans. Antennas Propag., Vol. 54, No. 11, 3063-3074, Nov. 2006.
doi:10.1109/TAP.2006.883981

12. Luxey, C. and D. Manteuffel, "Highly efficient multiple antennas for MIMO-systems," Proc. IEEE iWAT, 1-3, Lisbon, Portugal, Mar. 2010.

13. Chen, S.-C., Y.-S. Wang, and S.-J. Chung, "A decoupling technique for increasing the port isolation between two strongly coupled antennas," IEEE Trans. Antennas Propag., Vol. 56, No. 12, 3650-3658, Dec. 2008.
doi:10.1109/TAP.2008.2005469

14. Saidatul, N. A., A. A. H. Azremi, R. B. Ahmad, P. J. Sohand, and F. Malek, "Multiband fractal planar inverted F antenna (F-PIFA) for mobile phone application," Progress In Electromagnetics Research B, Vol. 14, 127-148, 2009.
doi:10.2528/PIERB09030802

15. CST Microwave Studio, [online], available: http://www.cst.com.

16. Taga, T., "Analysis for mean effective gain of mobile antennas in land mobile radio environments ," IEEE Trans. Veh. Tech., Vol. 39, No. 2, 117-131, May 1990.
doi:10.1109/25.54228

17. Dong, L., H. Ling, and R. W. Heath, "Multiple-input multiple-output wireless communication systems using antenna pattern diversity," Proc. IEEE Global Telecommun. Conf., Vol. 1, 997-1001, Taipei, Taiwan, Nov. 2002.

18. Pedersen, K., P. Mogensen, and B. Fleury, "Power azimuth spectrum in outdoor environments," Electron. Lett., Vol. 33, No. 18, 1583-1584, Aug. 1997.
doi:10.1049/el:19971029

19. Karaboikis, M. P., V. C. Papamichael, G. F. Tsachtsiris, C. F. Soras, and V. T. Makios, "Integrating compact printed antennas onto small diversity/MIMO terminals," IEEE Trans. Antennas Propag., Vol. 56, No. 7, 2067-2078, Jul. 2008.
doi:10.1109/TAP.2008.924677

20. Jusoh, M., M. F. Jamlos, M. R. Kamarudin, and F. Malek, "A MIMO antenna design challenges for UWB applications," Progress In Electromagnetics Research B, Vol. 36, 357-371, 2012.
doi:10.2528/PIERB11092701

21. Schwartz, M., W. R. Bennett, and S. Stein, Communication System and Techniques, 470-474, McGraw-Hill, New York, 1965.

22. Pierce, J. N. and S. Stein, "Multiple diversity with non independent fading," IRE Proc., Vol. 48, 89-104, Jan. 1960.

23. Rao, Q. and K. Wilson, "Design, modeling, and evaluation of a multiband MIMO/diversity antenna system for small wireless mobile terminals," IEEE Trans. on Components, Packaging and Manufacturing Tech., Vol. 1, No. 3.