Compact Dual-Band MIMO Antenna With Shared Decoupling Structure for 5G Mobile Terminals

Changjiang Deng; Xiaowei Cao; Donghao Li; Weihua Yu

doi:10.1109/LAWP.2023.3240673

Compact Dual-Band MIMO Antenna With Shared Decoupling Structure for 5G Mobile Terminals

Changjiang Deng, Xiaowei Cao, Donghao Li, Weihua Yu^*

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

In this letter, a compact dual-band multiple-input-multiple-output antenna, consisting of four antenna pairs, is presented for fifth-generation mobile terminal applications. Each pair includes two tightly arranged monopoles. By folding the L-shaped monopoles into U-shaped structures, both the 3.5 GHz band and 4.9 GHz band can share the same decoupling inductor. By adding stop-band filter on the monopole, dual-band operation can be provided by a single branch. The size of the dual-band antenna pair is merely 19 × 4 mm2. The measured -6 dB bandwidth can cover 3.4-3.6 GHz and 4.8-5.0 GHz, with port isolation higher than 12 dB. The measured radiation efficiency varies from 41% to 59% in the lower band, and varies from 38% to 62% in the upper band.

Original language	English
Pages (from-to)	1281-1285
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	22
Issue number	6
DOIs	https://doi.org/10.1109/LAWP.2023.3240673
Publication status	Published - 1 Jun 2023

Keywords

Dual band
fifth-generation (5G) communication
mobile terminal antennas
multiple-input-multiple-output (MIMO) antennas

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10.1109/LAWP.2023.3240673

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Deng, C., Cao, X., Li, D., & Yu, W. (2023). Compact Dual-Band MIMO Antenna With Shared Decoupling Structure for 5G Mobile Terminals. IEEE Antennas and Wireless Propagation Letters, 22(6), 1281-1285. https://doi.org/10.1109/LAWP.2023.3240673

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abstract = "In this letter, a compact dual-band multiple-input-multiple-output antenna, consisting of four antenna pairs, is presented for fifth-generation mobile terminal applications. Each pair includes two tightly arranged monopoles. By folding the L-shaped monopoles into U-shaped structures, both the 3.5 GHz band and 4.9 GHz band can share the same decoupling inductor. By adding stop-band filter on the monopole, dual-band operation can be provided by a single branch. The size of the dual-band antenna pair is merely 19 × 4 mm2. The measured -6 dB bandwidth can cover 3.4-3.6 GHz and 4.8-5.0 GHz, with port isolation higher than 12 dB. The measured radiation efficiency varies from 41% to 59% in the lower band, and varies from 38% to 62% in the upper band.",

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author = "Changjiang Deng and Xiaowei Cao and Donghao Li and Weihua Yu",

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AU - Yu, Weihua

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AB - In this letter, a compact dual-band multiple-input-multiple-output antenna, consisting of four antenna pairs, is presented for fifth-generation mobile terminal applications. Each pair includes two tightly arranged monopoles. By folding the L-shaped monopoles into U-shaped structures, both the 3.5 GHz band and 4.9 GHz band can share the same decoupling inductor. By adding stop-band filter on the monopole, dual-band operation can be provided by a single branch. The size of the dual-band antenna pair is merely 19 × 4 mm2. The measured -6 dB bandwidth can cover 3.4-3.6 GHz and 4.8-5.0 GHz, with port isolation higher than 12 dB. The measured radiation efficiency varies from 41% to 59% in the lower band, and varies from 38% to 62% in the upper band.

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Compact Dual-Band MIMO Antenna With Shared Decoupling Structure for 5G Mobile Terminals

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Keywords

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