A MIMO antenna design with closed slot for Wi-Fi 6E Application

A MIMO antenna design with closed slot for Wi-Fi 6E frequency band has been presented. This paper is designed on the upper edge of the metal frame of the notebook computer screen, by exciting the mode of the closed slot to achieve operation in Wi-Fi 6E band, and use the dual slot to achieve the effect of MIMO. Two closed slots with dimensions of 41 x 3 mm(2) are placed at 13.5 mm and 8.5 mm on the upper left edge of the 200 x 300 mm(2) screen metal plate. The distance between the two closed slots is 20 mm. The feed-in device is placed above the closed slot and consists of a 44 x 6 x 0.4 mm(3) FR4 board (epsilon r=4.4) and two 1 x 3.8 mm(2) feeds. The (2400-2500 /5150-7125 MHz) dual modes are excited by the feed-source coupling closed slot. Using the feature of high isolation of the slot, the distance between the dual radiation source elements can be pulled closer. In terms of simulation and measured, the S11 parameters are all below -6dB, and the isolation is below 15dB, which has good radiation characteristics.