Building a surrogate model of a perfect electric conductor using polynomial chaos expansion and the characteristic mode analysis

A surrogate model for a perfect electric conductor plate is built by using the polynomial chaos expansion method. The excited via four capacitive coupling elements which locations are determined analysis of current distribution each mode provided characteristic analysis. numerical based on method moments then created to generate database needed build model. Radiation patterns calculated compared with those given results show that can mimic and it be used replace complex models save computation time alleviate burden resources. Then, sensitivity conducted exhibit effect parameter deviations overall antenna performance reveal influential input parameters. reduce complexity structure.