Mutual coupling reduction of compact four-element MIMO slot antennas using metamaterial mushroom structures

Mutual coupling reduction of compact four-element MIMO slot antennas using metamaterial mushroom structures

2015 International Workshop on Antenna Technology (iWAT)

10.1109/IWAT.2015.7365342

http://dx.doi.org/10.1109/IWAT.2015.7365342

Guohua Zhai, Zhi Ning Chen, Xianming Qing

04 March 2015

G. Zhai, Z. N. Chen and X. Qing, "Mutual coupling reduction of compact four-element MIMO slot antennas using metamaterial mushroom structures," Antenna Technology (iWAT), 2015 International Workshop on, Seoul, 2015, pp. 3-6. doi: 10.1109/IWAT.2015.7365342

In this paper, the mutual coupling reduction of four-element substrate integrated cavity-backed slot (SICBS) antenna system based on two types of metamaterial mushroom structures are studied. In the first case, a double-layer mushroom wall is vertically positioned in between the SICBS antenna elements. In the second design, five double-layer mushroom cells are horizontally positioned above the SICBS antenna elements for mutual coupling suppression. The mushroom structure-loaded four-element SICBS antenna systems achieve ultra-low inter-element mutual coupling of -40 dB over the bandwidth of 2.39-2.45 GHz and 2.386-2.43 GHz (|S11|

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Institute for Infocomm Research