EFFICIENT INTEGRAL EQUATION METHOD FOR 2.5D MICROWAVE CIRCUITS IN LAYERED MEDIA

• Main Author: Tang, Wee-Hua
• Format: Others
• Published: UKnowledge 2005
• Subjects: Integral Equation Method|MPIE|Microwave circuits|Layered media Green's function|DCIM|QSPCFFT
• Online Access: http://uknowledge.uky.edu/gradschool_diss/345; http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1348&context=gradschool_diss

An efficient integral equation method based on a method of moment (MoM) discretization of the Mixed-Potential Integral Equation (MPIE) for the analysis of 2.5D or 3D planar microwave circuits is presented. The robust Discrete Complex Image Method (DCIM) is employed to approximate the Greens functions in layered media for horizontal and vertical sources of fields, where closed-form formulations of the z-integrations are derived in the spectral domain. Meanwhile, an efficient and accurate numerical integration technique based on the Khayat-Wilton transform is used to integrate functions with 1/R singularities and near singularities. The fast iterative solver - Quadrature Sampled Pre-Corrected Fast Fourier Transform (QSPCFFT) - is associated with the MoM formulation to analyze electrically large, dense and complex microwave circuits.