Study on Band-notched Charateristic Inheritance in UWB MIMO Antenna Array Design

Abstract

Abstract-In this paper, the band-notched characteristic inheritance in ultra-wide band (UWB) multiple input multiple output (MIMO) antenna array design is studied. First, the structure parameters and return loss of a monopole antenna are optimized to obtain desired UWB property. Then, the bandnotched characteristic is realized in 7.9-8.4GHz by using the rectangle split ring resonator (r-SRR). Furthermore, this UWB antenna is utilized to form a MIMO antenna array based on quasi-self-complementary antenna technique. Finally, the simulation results show that on the one hand, the band-notched property of the unit antenna can be inherited by the antenna array; on the other hand, the bandwidth of the stop band for antenna array is increased by about 66% compared with that of the antenna unit.