As the air force becomes more and more important, it is very important to improve the performance of object tracking. The circle phase array radar is adopted to improve the object tracking ability. However, it is very difficult to implement the circle phase array radar since it is a huge amount of antenna elements in the phase array radar. In this paper, we propose a novel method to help design the structure of the circle phase array radar and improve the performance of the circle phase array radar. The simulation results validate the proposed method.