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The previous numerical matching method can't apply in the whole angle space (0° ≪ β0 ≪ 90°) whether only based on the normal incidence case nor based on grazing to the edge incidence case when solving the diffraction problem of the anisotropic impedance wedge at oblique incidence by plane wave. A revised numerical matching method (NMM) based on the framework of the uniform geometrical theory of diffraction(UTD)...
Based on spectral domain method (SDM), an asymptotic approach to the investigation of the reflection of electromagnetic waves from a metal plane interface separating a vacuum half-space and a anisotropic plasmas layer is presented. Firstly, the spectral formulas of type I and type II waves existing in the plasmas are deduced. Then the boundary conditions at the top and bottom interfaces of the plasmas...
Adopting a method of moments/physical optics (MoM-PO) hybrid method, this communication explores the electromagnetic scattering from three-dimensional (3-D) isotropic or anisotropic impedance surface, based on an impedance boundary condition (IBC). According to the surface equivalence principle, the electromagnetic scattering can be replaced by the radiation of surface electromagnetic currents in...
Based on the parameters of TR Maglev train, a mathematic model of air gap control system with hybrid suspension of electro- and permanent magnet was established. Introduced by the control strategy of state feedback, the start-up characteristics of hybrid Maglev control system were analyzed and compared under the condition of ramp and instantaneous spring inputs. With the disturbances of air gap spring...
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