High Isolation UWB-MIMO Compact Micro-strip Antenna

Authors

  • Ze-Lin Song Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Zhao-Jun Zhu Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Lu Cao Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054, China

Keywords:

Dual polarization, dual-state operation, micro-strip, notch band, UWB-MIMO antenna

Abstract

A compact four-unit ultra-wideband multipleinput multiple-output (UWB-MIMO) antenna with very high isolation, dual polarization, notched structure, and achieving dual-state operation, along with smaller volume, is proposed in this paper. The proposed MIMO antenna element consists of two parts: the front patch composed of four symmetrical trapezoidal radiating elements and feeder, and the back composed of a rectangular annular ground. The offset of antenna operating frequency band is achieved by adjusting the rectangular patch in the middle of the back side, and by introducing an X-shaped metal narrow strip on the top side and an X-shaped slit on the bottom side to improve the isolation in the single port feeding state of antenna. Finally, the dimension of the antenna is 32 × 32mm2. Under the frequency from 3.1 GHz to 10.6 GHz, the isolation in the condition of differential mode can below -30 dB, which is very high, and also can work in the single port inputting state, showing a dual mode operation. In addition, a trapezoidal slit is introduced to obtain a notch structure. The measured results and simulation results are consistent.

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References

Federal Communications Commission, “First report and order in the matter of revision of part 15 of the commission’s rules regarding ultra-wideband transmission systems,” ET-Docket 98-153, Apr. 22, 2002.

E. A. Daviu, M. Gallo, B. B. Clemente, and M. F. Bataller, “Ultra-wideband slot ring antenna for diversity applications,” Electron Lett., vol. 46, pp. 478-480, 2010.

P. Gao, S. He, X. B. Wei, Z. Q. Xu, N. Wang, and Y. Zheng, “Compact printed UWB diversity slot antenna with 5.5-GHz band-notched characteristics,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 237-240, 2014.

J. F. Li, Q. X. Chu, Z. H. Li, and X. X. Xia, “Compact dual bandnotched UWB MIMO antenna with high isolation,” IEEE Trans. Antennas Propag., vol. 61, pp. 4759-4766, 2013.

W. A. Li, Z. H. Tu, and Q. X. Chu, “Compact, high isolation and dual-polarized differential dual

notched UWB-MIMO slot antenna,” IEEE Microw. Opt. Technol. Lett., vol. 57, no. 11, pp. 2609-2614, Nov. 2015.

Y. Y. Liu and Z. H. Tu, “Compact differential bandnotched stepped-slot UWB-MIMO antenna with common-mode suppression,” [J]. IEEE Antennas & Wireless Propagation Letters, 16 (99):1-1, 2017.

J. R. Kelly, P. S. Hall, and P. Gardner, “Bandnotched UWB antenna incorporating a microstrip open-loop resonator,” IEEE Trans. Antennas Propag., vol. 59, no. 8, pp. 3045-3048, Aug. 2011.

Y. Sung, “Triple band-notched UWB planar monopole antenna using a modified H-Shaped resonator,” IEEE Trans. Antennas Propag., vol. 61, no. 2, pp. 953-957, Feb. 2013.

T. G. Ma and J. W. Tsai, “Band-rejected ultrawideband planar monopole antenna with high frequency selectivity and controllable bandwidth using inductively coupled resonator pairs,” IEEE Trans. Antennas Propag., vol. 58, no. 8, pp. 2747- 2752, Aug. 2010.

Q. Xue, S. W. Liao, and J. H. Xu, “A differentiallydriven dual-polarized magneto-electric dipole antenna,” IEEE Trans. Antennas Propag., vol. 61, pp. 425-430, 2013.

R. G. Vaughan and J. B. Andersen, “Antenna diversity in mobile communications,” IEEE Trans. Veh. Technol., vol. 36, pp. 149-172, 1987.

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Published

2021-07-25

How to Cite

[1]
Ze-Lin Song, Zhao-Jun Zhu, and Lu Cao, “High Isolation UWB-MIMO Compact Micro-strip Antenna”, ACES Journal, vol. 33, no. 03, pp. 293–297, Jul. 2021.

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