A dual band-notched UWB-MIMO antenna using slot and stub techniques

This paper proposes a compact dual band-notched UWB-MIMO antenna whose size is 26.5×30 mm². Two identical semicircle ring shaped monopole UWB antennas are designed and placed side by side. Two notched bands are realized by etching two L-shaped slots on the ground plane and inserting two "anchor" shaped stubs into the radiating patch to suppress the WiMAX and WLAN band interferences. Simulated results show that two notch bands and wide bandwidth are achieved. Furthermore, the proposed UWB-MIMO antenna can provide a high isolation which is better than -19.74 dB in most of the UWB band. Also, gain and radiation patterns are given to verify the effectiveness of the designed UWB-MIMO antenna.