Near field sources cannot be located by using far field assumptions without compromising the precision. To solve this issue, many passive near field sources Iocalization techniques have been proposed in the last few decades. There exists a lot of research work in which circular receiving array is used to locate a single near field source in 3D. In this paper, this domain is extended to active Iocalization by proposing a low complexity closed-form method based on least squares estimation to locate a near field target using a bistatic MIMO system with uniform circular arc transmitting and receiving arrays. The simulation results indicate that the proposed method is capable to estimate the spherical coordinates of the target and also shows acceptable performance like the most of the existing near field source Iocalization methods.