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dc.contributor.authorHu, Weien_US
dc.contributor.authorChen, Zhanen_US
dc.contributor.authorQian, Longen_US
dc.contributor.authorWen, Lehuen_US
dc.contributor.authorLuo, Qien_US
dc.contributor.authorXu, Ruien_US
dc.contributor.authorJiang, Wenen_US
dc.contributor.authorGao, Stevenen_US
dc.identifier.citationHu, W., Chen, Z., Qian, L., Wen, L., Luo, Q., Xu, R., Jiang, W. & Gao, S. (2022). Wideband back-cover antenna design using dual characteristic modes with high isolation for 5G MIMO smartphone. IEEE Transactions On Antennas and Propagation, 70(7), 5254-5265.
dc.description.abstractA novel method of designing a wideband high-isolated dual-antenna pair using dual-characteristic modes (CMs) is presented for fifth-generation (5G) multiple-input multiple-output (MIMO) smartphone applications. A set of orthogonal CMs resonating from the square-loop slot is first introduced and works for the lower band. Then, another set of orthogonal CMs resonating from the edge branches is introduced with a shared compact radiator and works for the higher band. In combination with two sets of degenerated CMs and a capacitive coupling feeding structure, the proposed dual-antenna pair achieves a broad impedance bandwidth and high isolation without the need for any external decoupling structures. Based on this dual-antenna pair, an 8times 8 MIMO array is developed and integrated into the back cover of a smartphone, which realizes zero ground clearance on the system circuit board. To verify the design concept, prototypes of the antenna pair and MIMO array were fabricated and measured. It shows that experimental results agree well with the simulation results. More importantly, the presented 8times 8 MIMO array has high isolation of more than 20 dB is achieved across the operating band of 3.3-3.8 GHz.en_US
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen_US
dc.rights© 2022 IEEE. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleWideband back-cover antenna design using dual characteristic modes with high isolation for 5G MIMO smartphoneen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.subject.keywordsBack-Cover Antennaen_US
dc.subject.keywordsCharacteristic Modeen_US
dc.description.acknowledgementThis work was supported in part by the National Natural Science Foundation of China under Grant 62071347, in part by the Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/N032497/1 and Grant EP/S005625/1, and in part by the 111 Project of China.en_US
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