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.

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

Ze-Lin Song, Zhao-Jun Zhu, & Lu Cao. (2021). High Isolation UWB-MIMO Compact Micro-strip Antenna. The Applied Computational Electromagnetics Society Journal (ACES), 33(03), 293–297. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/9215

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