Analysis of inhomogeneous multilayer antenna structure by hybrid method

The paper discussed the implementation of the hybrid algorithm to modelling the multilayer planar circuit by combine the FDFD method and WCIP method. The finite difference frequency domain (FDFD) algorithm can be used to modelling the 3D discontinuity structure, with the open region modelled by iterative method. The well agreement between our method and original FDFD method demonstrated the validity and flexibility of the method. Memory requirement is greatly reduced by using DDM.