A Compact MIMO Antenna for UWB Applications
Keywords:2x1 compact antenna, EBG, MIMO antenna, UWB
A 2x1 compact UWB-MIMO antenna with two -10 dB impedance bandwidths of 2.6 GHz and 8.85 GHz is presented. The MIMO antenna dimension is 5.3 cm ´ 3.8 cm and is composed by two symmetrical rectangular patches, each one with a resonance frequency at 4 GHz. An EBG structure is introduced between the elements to increase de isolation and improve the MIMO antenna performance. The transmission coefficient of the MIMO antenna with EBG structure reaches a minimum of -28.9 dB at 8.18 GHz, and its maximum is -16.1 dB at 9.9 GHz. The impedance bandwidth is 5.9 GHz, and the maximum gain of the proposed antenna is 6 dBi.
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