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J Electromagn Eng Sci > Volume 16(3); 2016 > Article
Journal of Electromagnetic Engineering and Science 2016;16(3):194-198.
DOI: https://doi.org/10.5515/JKIEES.2016.16.3.194   
An Eight-Element Compact Low-Profile Planar MIMO Antenna Using LC Resonance with High Isolation
DukSoo Kwon1, Soo-Ji Lee1, Jin-Woo Kim1, ByungKuon Ahn1, Jong-Won Yu1, Wang-Sang Lee2
1School of Electrical Engineering, Korea Advanced Institute of Science and Technology
2Department of Electronic Engineering/Engineering Research Institute (ERI), Gyeongsang National University
Correspondence:  Wang-Sang Lee,Email: wsang@gnu.ac.kr
Abstract
An eight-element compact low-profile multi-input multi-output (MIMO) antenna is proposed for wireless local area network (WLAN) mobile applications. The proposed antenna consists of eight inverted-F antennas with an isolation-enhanced structure. By inserting the isolation-enhanced structure between the antenna elements, the slot and capacitor pair generates additional resonant frequency and decreases mutual coupling between the antenna elements. The overall size of the proposed antenna is only $33mm{times}33mm$, which is integrated into an area of just $0.5{lambda}{times}0.5{lambda}$. The proposed antenna meets 5-GHz WLAN standards with an operation bandwidth of 4.86 - 5.27 GHz and achieves an isolation of approximately 30 dB at 5 GHz. The simulated and measured results for the proposed antenna are presented and compared.
Key words: Isolation Technology, MIMO, Mutual Coupling
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