A Wideband Self-Decoupled Microstrip Patch Antenna Array Using Characteristic Modes of Ground Plane

LAI Qixuan; PAN Yongmei

doi:10.1049/cje.2022.00.249

Volume 31 Issue 6

Nov. 2022

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LAI Qixuan and PAN Yongmei, “A Wideband Self-Decoupled Microstrip Patch Antenna Array Using Characteristic Modes of Ground Plane,” Chinese Journal of Electronics, vol. 31, no. 6, pp. 1161-1172, 2022, doi: 10.1049/cje.2022.00.249

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LAI Qixuan and PAN Yongmei, “A Wideband Self-Decoupled Microstrip Patch Antenna Array Using Characteristic Modes of Ground Plane,” Chinese Journal of Electronics, vol. 31, no. 6, pp. 1161-1172, 2022, doi: 10.1049/cje.2022.00.249

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A Wideband Self-Decoupled Microstrip Patch Antenna Array Using Characteristic Modes of Ground Plane

doi: 10.1049/cje.2022.00.249

1.
School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, China

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Author Bio:
Qixuan LAI was born in Fujian Province, China. He is currently pursuing the Ph.D. degree with the School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China. His current research interests include antenna decoupling techniques and microstrip patch antennas. (Email: meqxl@mail.scut.edu.cn)

Yongmei PAN (corresponding author) received the B.S. and Ph.D. degrees in electrical engineering from the University of Science and Technology of China, Hefei, China, in 2004 and 2009, respectively. From 2009 to 2012, she was a Senior Research Assistant/Research Fellow with the Department of Electronic Engineering, City University of Hong Kong, Hong Kong, China. In 2013, she joined the School of Electronic and Information Engineering, South China University of Technology (SCUT), Guangzhou, China, as an Associate Professor, where she is currently a Full Professor. Her research interests include dielectric resonator antennas, filtering antennas, and metasurface antennas. Dr. Pan has authored and co-authored more than 50 IEEE Transactions papers. She received the highly prestigious First Class Award (Natural Science) in the 2016 Higher Education Outstanding Scientific Research Output Awards (Science and Technology) from the Ministry of Education, China. In addition, she was a recipient of the National Science Foundation for Outstanding Young Scholars of China, and the Top-notch Young Talent of Guangdong Province. Dr. Pan was the Technical Program Co-Chair, 2019/2021/2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), and the Award Committee Vice-chair, 2020 Asia-Pacific Microwave Conference (APMC). She serves as Vice Director of Guangdong Provincial Key Laboratory of Short Range Wireless Detection and Communication. She is now an Associate Editor of the IEEE Transactions on Antennas and Propagation, and she has received Transactions Commendation Certificate four times in 2017, 2018, 2020, and 2021 for her exceptional performance. (Email: eeympan@scut.edu.cn)
Received Date: 2022-07-31
Accepted Date: 2022-11-07
Rev Recd Date: 2022-10-08

Available Online: 2023-01-17

Publish Date: 2022-11-05

Abstract

Abstract

The reduction of mutual coupling between antenna elements has been a research hotspot in the design of multi-input multi-output (MIMO) systems. In this paper, a review of the existing theory of characteristic mode (TCM) based decoupling methods is introduced, and they are summarized and divided into two categories according to mechanisms. The first category consists of the use of the modal properties of the radiator whereas the second one is based on the ground plane to enhance isolation. Moreover, a wideband self-decoupling method is implemented for the MIMO microstrip patch antenna (MPA) array using the characteristic modes (CMs) of the ground plane. It is found that, by adjusting the dimension of the ground plane, their CMs along with two or three null-field regions, can be excited by the active MPA. When the feeding position of the adjacent passive MPA is arranged in the null-field region, the energy cannot be coupled with the receiving port, thereby achieving a good isolation level. For verification, a prototype of the proposed MIMO MPA array has been fabricated and tested. The results show that a wide usable bandwidth of 24.2% has been achieved.
- Multi-input multi-output array,
- Mutual coupling,
- Theory of characteristic mode,
- Microstrip patch antenna

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References(23)

References

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