Design of Compact Multiband MIMO Antenna Based on Ground Neutralization Line Decoupling

Authors

  • Zhonggen Wang School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, 232001, China
  • Weidong Mu School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, 232001, China
  • Ming Yang Department of Electrical and Communications Engineering, West Anhui University, Lu’an, 237012, China
  • Chenlu Li School Electrical and Information Engineering, Hefei Normal University, Hefei, 230061, China

DOI:

https://doi.org/10.13052/2022.ACES.J.370606

Keywords:

Decoupling, diversity performance, MIMO antenna system, Multiband

Abstract

A compact, multiband two-port MIMO antenna is proposed in this paper for various wireless transmission networks, where the overall size of the antenna is only 30 × 20 × 1.6 mm3. The proposed MIMO antenna consists of two radiating patches, each of which comprises a semicircle and a semi-regular hexagon, as well as the surface-etched C-slot and U-slot to tailor the antenna’s return loss characteristics. In proposed antenna, a parasitic branch forms when the ground plane’s meandering branches are symmetrically distributed. On one hand, it can increase the ground plane’s effective area and enhance the antenna’s return loss characteristics. A neutralization line, on the other hand, is generated, thereby limiting the current transmission on the ground plane. A cross-shaped slit in the ground’s center is also employed to further promote isolation between the radiation elements. According to obtained results, the antenna can cover the frequency bands 0.67-7.29 GHz, 8.07-12.11 GHz, 14.07-15.41 GHz, and 16.04-22 GHz (S11<−10 dB). Moreover, an RF isolation larger than 18 dB exists between the two ports. Lastly, in terms of ECC, DG, TARC, CCL, and MEG, the diversity performances are all satisfactory.

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Author Biographies

Zhonggen Wang, School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, 232001, China

Zhonggen Wang received the Ph.D. degree in electromagnetic field and microwave technique from the Anhui University of China (AHU), Hefei, P. R. China, in 2014. Since 2014, he has been with the School of Electrical and Information Engineering, Anhui University of Science and Technology. His research interests include computational electromagnetics, array antennas, and reflect arrays.

Weidong Mu, School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, 232001, China

Weidong Mu received the B.E degree from Anhui University of Science and Technology in 2020. He is currently pursuing the M.S degree in Anhui University of Science and Technology. His current research interest includes the theory and design of MIMO antenna.

Ming Yang, Department of Electrical and Communications Engineering, West Anhui University, Lu’an, 237012, China

Ming Yang received the Ph.D degree in electromagnetic field and microwave technology from Anhui University (Hefei, P. R. China) in 2019. He used to be the deputy director of the Department of Electronic and Information Engineering of Bozhou University. He is currently a professor at the School of Electronic and Information Engineering, West Anhui University. His research interests include MIMO antennas, SIW antennas, base station antennas and millimeter wave antennas.

Chenlu Li, School Electrical and Information Engineering, Hefei Normal University, Hefei, 230061, China

Chenlu Li received the Ph.D. degree in electromagnetic field and microwave technique from the Anhui University of China (AHU), Hefei, P. R. China, in 2017. Since 2018, she has been with the School Electrical and Information Engineering, Hefei Normal University. Her research interests include computational electromagnetics, array antennas, and reflect arrays.

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Published

2022-06-30

How to Cite

[1]
Z. . Wang, W. . Mu, M. . Yang, and C. . Li, “Design of Compact Multiband MIMO Antenna Based on Ground Neutralization Line Decoupling”, ACES Journal, vol. 37, no. 06, pp. 702–715, Jun. 2022.

Issue

2022: Vol 37 Iss 6

Section

General Submission

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