Fig. 1 shows a mock-up antenna to evaluate the characteristicsof the dual-port MIMO antenna. The size of thePCB board is 60 100 1 mm3, and it is printed on thetop of an FR4 substrate. The overall antenna PCB circuitheight is 1.3mm, considering the SP4T RF switch componentsize (3mm 3mm 0.6mm) on the front side directionand voltage component size (2.1mm 2.1mm 0.7mm)on the rear side direction. The antenna patterns are located