A compact two port MIMO antenna for sub-6GHz band for WLAN applications
Sanjeev Sharma, Rajeev Kumar
Abstract
A small-sized two-port multiple-input-multiple-output (MIMO) antenna is proposed for Wireless local area network (WLAN) applications. The antenna structure has a triangular-shaped radiating thin line shaped like a hook. The 2-port MIMO antenna is designed by placing the individual elements at 180° orientations with respect to each other and also by adding a thin decoupling line between radiating antennas. By incorporating this technique, the proposed antenna achieved a high isolation of <-21.5 dB and also a reduction of the size of the antenna. The proposed antenna uses low-cost FR4 substrate and has a simple, symmetrical, and planar structure which is specifically meant for radiating in 5–6 GHz which covers n46 (5150–5925 MHz), n47 (5855–5925) band. This band is also used for WLAN services which operate on 802.11× (Wi-Fi) series of standards. The proposed antenna structure provides ECC, CCL, and DG values of <0.004, <0.4bits/s/Hz, and >9.95, respectively.