Proposal of Singularity-Circumvented Green's Functions for 2D Periodic Structures in Homogeneous Medium

특이점이 제거된 2 차원 단일매질 주기구조에 대한 그린함수의 제안

In this paper, a novel method is presented for efficient calculation of the spatial-domain Green's functions of 2D electromagnetic problems. This method combines spectral and spatial domain calculation schemes and prevents the Green's functions from diverging at the singularities that complicate the process of the Method of Moment(MoM) application. For the validation of this proposed method, fields will be evaluated along the spatial distance including zero distance for 2D free-space and periodic homogeneous geometry. The numerical results show the validity of the prosed method and correspondng physics.