A Novel Integral Equation Method for Biperiodic Array of Connected 3-D Composite Objects

A novel periodic method of moments (PMM) in spatial time domain is proposed in this paper. By using a reasonable equivalent model and periodic Greens function (PGF), we can treat connected and disconnected biperiodic unit cells in a general way, even for complex composite structures. The example shows that the proposed method is accurate. Meanwhile, the paper provides a novel approach to reduce the calculation time of the biperiodic structure.