COMPACT UWB MIMO ANTENNA WITH METAMATERIAL-INSPIRED ISOLATOR

In this paper, a dual-band complementary split ring resonator (C-SRR) is used to improve the band-notch effect relative to the traditional SRR. Meanwhile, we employ a brand-new SRR unit cell as an isolator for decoupling among multiple bands without enlarging the dimensions of the multiple-input-multiple-output (MIMO) antenna. Therefore, a compact ultra-wideband MIMO antenna is developed. Compared with the previous work, the proposed MIMO antenna also has obvious advantages such as high isolation and miniaturization (the dimensions are only 13.5mm × 34mm). The metamaterial-inspired UWB MIMO antenna presented here is suitable for small scaled mobile devices.

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