Meander line loaded 2-port stepped impedance feed slotted MIMO antenna for C and lower X-band communication

Abstract In this communication, a wideband 2-Port Multiple-Input-Multiple-Output (MIMO) antenna of the dimension of 0.13 λ 0 × 0.68 λ 0 × 0.02 λ 0 mm 3 (λ 0 , measured at a lower frequency is 4.43 GHz) is investigated for the C-band and Partial X-Band Applications. The concept of defective ground is introduced to enhance the impedance bandwidth by engraving the rectangular slots. In the proposed configuration a mender line is incorporated as a decoupling network between the antenna elements to enhance the isolation (>18 dB). The quarter wavelength long stepped impedance matched transmission line is used to excite the proposed configurations. The impedance bandwidth of the proposed antenna is (4.43–9.85 GHz)/ 83%. To explore the diversity of the MIMO system the ECC < 0.04, DG > 9.8 dB, and CCL< 0.3 bps Hz −1 are reported. Excellent agreement between simulation and measured results is obtained, justifying the MIMO antenna’s applicability for wireless applications.