Design of a MIMO antenna for USB dongle application using common grounding

In this paper, a MIMO antenna for USB dongle application is proposed. To obtain the wide impedance bandwidth, the beveling technique is used. The high isolation between the two radiating elements is achieved by using T-shaped common grounding element. The fabricated antenna has a return loss over 10 dB, a gain over 4.53 dBi, and an isolation between the two radiating elements higher than 20 dB over the Mobile-WiMAX band from 3.5 to 3.7 GHz. The measured ECC was less than 0.2.