Source google image: https://www.researchgate.net/profile/Leeladhar_Malviya/publication/316838750/figure/fig9/AS:499689498910725@1496146668615/MIMO-antenna-with-corner-slots-for-isolation-enhancement-and-wide-banding-76.png
Isolation 76
Source google image: https://www.researchgate.net/profile/Leeladhar_Malviya/publication/316838750/figure/fig9/AS:499689498910725@1496146668615/MIMO-antenna-with-corner-slots-for-isolation-enhancement-and-wide-banding-76.png