Hybrid Numerical–Asymptotic Modeling of Electrically Large EM Structures
نویسندگان
چکیده
Efficient numerical-asymptotic electromagnetic simulations of electrically large structures are presented based on an iterative hybridization of the method of moments (MoM) and physical optics (PO) in a higher order computational framework. The iterative MoM-PO technique employs multiple reflections between PO currents nested within an overall iterative MoM-PO multiple-reflection process. The results demonstrate an effective MoM-PO modeling of an automobile with a GSM 1900-MHz antenna and a substantial improvement in accuracy of the analysis of a characteristic reflector antenna geometry using the new technique with multiple PO-PO reflections over the standard higher order technique that neglects the mutual coupling between the currents in the asymptotic region of the structure.
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