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This paper outlines a highly efficient expansion function decomposition and solution for broadband surface integral equation based simulation. In this work, solenoidal and non-solenoidal bases are mapped to current-charge (CQ) sub-bases formed from the well known Rao-Wilton-Glissen (RWG) expansions. These CQ bases are then simultaneously transformed from multiple higher-level expansions resulting...
This paper details the simulation and measurement of low frequency (LF) magnetic field shielding by open surface structures. The approach of this paper is to develop equivalent electric sheet impedance boundary conditions for use by LF surface based electric field integral equation (EFIE) solvers. From these sheet impedance forms, a figure of merit is developed to determine the boundary condition...
This paper outlines the advantage of applying domain decomposition to arbitrary surfaces via a multilevel geometry description (MLGD). By constructing the desired simulation surface from embedded lists of subsurface location vectors and orientation matrices; storage, compute, and matrix fill time formulations can be significantly reduced. We discuss proper formation of a multilevel geometry and outline...
This paper discusses the extension of array redundancy minimization techniques to arbitrary contiguous surfaces. By constructing a surface from an assemblage of facets and assigning each facet a location and orientation in global space, storage, compute time, and matrix fill time can be reduced. Included are general geometric formulations necessary to construct an arbitrary surface from preexisting...
The finite element-boundary integral method, incorporating the multilevel fast multipole method to reduce the storage cost of the boundary integral matrix, is applied to the analysis of two microstrip filter circuits illuminated by a plane wave. Simulated results indicate that significant voltages are induced across the output ports close to the filters' resonances. The study is further extended to...
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