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A Novel Dual-Band MIMO Antenna Array With Low Mutual Coupling for Portable Wireless Devices

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2 Author(s)
XueMing Ling ; Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China ; RongLin Li

In this letter, a dual-band multiple-input-multiple-output (MIMO) antenna array is proposed for portable wireless devices. The MIMO antenna array consists of two back-to-back monopoles elements with an edge-to-edge distance of 0.096 λ -(λ is the free-space wavelength at 2.4 GHz). A shorting strip and an isolation stub are designed to reduce the mutual coupling between the two elements. The MIMO antenna array has a volume of 15 × 50 × 0.8 mm3. It can cover the WLAN 2.4- and 5.8-GHz bands. The measured isolation values (S21) are lower than - 25 and - 20 dB at the 2.45- and 5.8-GHz bands, respectively. The key design parameters are presented, and the parametric study is performed.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:10 )