Installed Performance Modeling of Complex Antenna Array Mounted on Extremely Large-Scale Platform Using Fast MoM-PO Hybrid Framework

A fast method of moments-physical optics (MoM- PO) hybrid framework is proposed to efficiently analyze complex antenna array mounted on large-scale platforms with multi-scale features. In this fast MoM-PO hybrid framework, the MoM, enhanced by the adaptive integral method (AIM), is employed to effectively simulate the antenna array, and the PO is used to efficiently describe the perturbation from the large platform on the antenna array. An iterative process is implemented to capture the interaction between the antenna array and the platform for achieving stable and converged solution. The proposed hybrid framework provides very good flexibility to cater for any fast integral equation solvers for speeding up the MoM solution process in modeling large and complex antenna arrays. Numerical simulations clearly demonstrate that the proposed fast MoM-PO technique is capable of handling complex onboard antenna arrays installed on electrically large platforms with much less computational costs as compared with the conventional MoM-PO method and multilevel fast multipole algorithm (MLFMA).