Pattern synthesis for conformal arrays with dual polarized antenna elements

In order to overcome the cross polarization effect of conformal arrays, dual polarized array elements are used in this paper to optimize both the two orthogonal polarization components of the array pattern, simultaneously. The dual polarized antenna has two individual feed points to excite or receive the local co-polarized component and the cross-polarized component separately. Based on this feature, a new signal model is established and conformal array manifold is analyzed. The signal space is expanded and divided into two polarized signal spaces. And then, both the two orthogonal polarization excitations of each element are used to form the final beam pattern. At last, the optimal weight vector is obtained through an iterative process based on adaptive array theory. It enables the pattern design in co-polar and cross-polar spaces at the same time. Examples of two-dimensional beam pattern synthesis for cylindrical arrays are presented, and simulation results illustrate the effectiveness of the proposed method.