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Compact MIMO antenna design based on fractal geometry and DSG

Cao Thanh Nghia, Krzysztofik Wojciech Jan

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

2019

nr 6

299-302, CD

The paper presents a 2-port MIMO antenna, which is designed to operate in the 5.745 GHz band for WLAN systems. The antenna is designed based on a combination of fractal geometry and metamaterial structure to reduce its size and enhance its bandwidth. The microwave laminate FR4-epoxy with permittivity = 4.4, thickness h = 1.6mm and dielectric tangent loss 0.02 is used as an antenna substrate. The result of the design is a compact size MIMO antenna with an overall size of 30.4x13.4mm. MIMO antennas achieve high performance through the evaluation of criteria as Envelope of Correlation Coefficient, ECC, Total Active Reflection Coefficient, TARC, and Channel Capacity Loss, CCL. All of them satisfied well the WLAN-MIMO system requirements.