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A uniform solution is obtained for the diffraction of a cylindrical wave by a conducting wedge. This solution is valid within the entire region and the expression of the diffraction integral is obtained by Pauli-Clemmow method. When the source is far from the observation point and from the wedge, this solution reduces to that for the case of a plane wave illumination.
The problem of scattering by a perfectly conducting slotted elliptic cylinder excited by a z polarized incident plane wave is considered. The problem is reduced to an integral equation in terms of the aperture field. The solution of the integral equation is carried out using two methods. In the first method, the aperture field is expressed analyticly, then Galerkin's technique is introduced to solve...
A hybrid technique which combines the potentiality of the FEM in treating complex electromagnetic regions with the simplicity of the Floquet series has been presented. This results in a very powerful and flexible method for the analysis of periodic structures having arbitrary geometry and material properties.
The equivalence principal is used to formulate the scattered field in terms of equivalent surface currents radiating in unbounded free space. The method of moment is then used to reduce the integral equations to a matrix equation. The method is applied to compute the radar cross-section of material targets.
The spectral domain dyadic Green's function is developed for stratified media. Poisson summation formula is used to transform the infinite spectral integrals into infinite double summations for discrete frequencies and make it applicable to infinite arrays of conductors printed on a dielectric slab. A Galer kin method is used to descertize and solve the electric field integral equations for the geometry...
The electric field integral equation for electromagnetic scattering by perfectly conducting cylinders is solved by the method of moments with weighted point matching technique. The associated impedance matrix is made symmetric by introducing a supplementary weighting factor and the resultant system of linear equations is solved by the Cholesky decomposition. This procedure yields a significant reduction...
By dividing the contribution of the induced electric current density on each object into two parts, an efficient and simple numerical method is presented to solve the multi-object scattering problems. The formulation is provided for a two-dimensional scattering problem of perfectly-conducting cylinders and representative numerical results are given to show the effectiveness of the method.
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