TY - GEN
T1 - Mutual Coupling Reduction of Dual-band MIMO Antenna Array Using Near-Perfect Metamaterial Absorber Wall
AU - Deng, Shasha
AU - Zhang, Xiang
AU - Chen, Chang
AU - Ding, Jun
AU - Zhang, Hualiang
AU - Chen, Weidong
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A dual-band near-perfect metamaterial absorber (MA) is proposed in this paper to realize mutual coupling reductions for a multiple-input-multiple-output antenna array at two independent bands. The double-layer MA exhibits dual-band near 100% absorptions at the operating frequencies of the antenna array (3.5 and 5.2 GHz), of which the two antenna elements are closely spaced with an edge-to-edge distance of 12 mm. After inserting an isolation wall composed of four MA unit cells between the two antennas, the spatial coupling waves can be absorbed to realize a sharp drop in the mutual coupling at the operating frequencies. To validate the decoupling mechanism, an antenna array prototype with the isolation wall is fabricated and measured. The measured results show good agreement with the simulated ones. Moreover, a considerable mutual coupling reduction of 25 dB at the lower band and 26 dB at the upper band can be achieved.
AB - A dual-band near-perfect metamaterial absorber (MA) is proposed in this paper to realize mutual coupling reductions for a multiple-input-multiple-output antenna array at two independent bands. The double-layer MA exhibits dual-band near 100% absorptions at the operating frequencies of the antenna array (3.5 and 5.2 GHz), of which the two antenna elements are closely spaced with an edge-to-edge distance of 12 mm. After inserting an isolation wall composed of four MA unit cells between the two antennas, the spatial coupling waves can be absorbed to realize a sharp drop in the mutual coupling at the operating frequencies. To validate the decoupling mechanism, an antenna array prototype with the isolation wall is fabricated and measured. The measured results show good agreement with the simulated ones. Moreover, a considerable mutual coupling reduction of 25 dB at the lower band and 26 dB at the upper band can be achieved.
UR - https://www.scopus.com/pages/publications/85139787572
U2 - 10.1109/AP-S/USNC-URSI47032.2022.9886227
DO - 10.1109/AP-S/USNC-URSI47032.2022.9886227
M3 - 会议稿件
AN - SCOPUS:85139787572
T3 - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
SP - 1782
EP - 1783
BT - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022
Y2 - 10 July 2022 through 15 July 2022
ER -