Dual Band Notched UWB-MIMO Antenna Incorporating CSRR for WLAN and X Band Applications

A novel two-element planar Ultra wideband MIMO monopole antenna is introduced in this paper. Antennas are composed of two identical monopoles put together closely to attain a very compact size of $\mathbf{18\ x\ 30\ mm}^{\mathbf{2}}$ . Two L-shaped parasitic stubs are incised on the ground plane to achieve superior seclusion between the elements of the antenna. CSRR slot and J-shaped slot are placed on two radiating antenna elements to attain band-notched characteristics for X-band applications and Wireless LAN at 8.2 GHz and 5.2 GHz. To improve impedance matching L-shaped and rectangular slots are chiselled on the bottom surface (ground). Proposed Ultra wideband MIMO antenna engulfs the frequency band from 3.1GHz to 12 GHz attaining high isolation of $\vert\mathbf{S12}\vert\&\vert\mathbf{S21}\vert\leq-\mathbf{23}$ dB for 3.1GHz to 12 GHz. Parameters like reflection coefficients, mutual coupling between antenna elements, ECC, Diversity and radiation characteristics is analyzed using simulated results. The simulation outcomes show that the designed antenna is a highly miniaturized structure and is acceptable for UWB communication applications.