Abstract:

In UWB MIMO antenna systems, enhanced isolation is needed because reduced coupling leads to greater antenna performance. A MIMO antenna system is proposed that has enhanced isolation in UWB. The suggested MIMO antenna has a size of 33x48 mm2 that contains two rectangle patches with a bandwidth range of 3-11 GHz. Various antenna performance parameters such as S-parameters, VSWR, Reference Impedance, Efficiency, Far fields and MIMO performance parameters such as Envelope Correlation Coefficient (ECC), and Diversity Gain (DG) are observed. This model is small, has a wide bandwidth, a good gain value, and high isolation. The proposed MIMO has a significantly low envelope correlation coefficient (ECC<0.009), high diversity gain (DG>9.95 dB), isolation is enhanced which is below -13 dB, acquired S-parameters are less than -10 dB resonated at 4.52 GHz and 9.88 GHz within the operating frequency range. It is impressive that the suggested antenna has huge isolation although the radiating elements have low edge to edge gap (3 mm).

Description:

Enhanced Isolation, ultra-wide band, MIMO antenna system, I-shaped stub