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Showing 1 to 11 of 11 for “"Electric Field Integral Equation (EFIE)"”.
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An Investigation on the Effect of Ground Plane Roughness on Antenna Radiation Characteristics
… rough surface. The Method of Moments with the Electric Field Integral Equation (EFIE) is used to account for all coupling interactions. Monte Carlo averaging is used to compute results over multiple rough surface realizations, which follow the Pierson-Moskowtiz surface model. The results …
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Studies of some issues in solving surface integral equations and the equivalence principle algorithm
… it. We begin with the formulation for the electric field integral equation (EFIE), and visit the necessary treatment of the magnetic field integral equation (MFIE), the combined field integral equation (CFIE), and the Poggio-Miller-Chu-Harrington- Wu-Tsai (PMCHWT) along with various …
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Scattering from periodic array of parallel strips
The field distribution between strips in a periodic array of parallel strips was modeled. The electric field integral equation (EFIE) together with method of moments was employed to solve the problem. The incident plane wave was assumed to be transverse magnetic (TM) and transverse electric (TE). …
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Computationally Modeling the Effects of Surface Roughness on Soft X-Ray Multilayer Reflectors
… between neighboring surface atoms. The scalar electric field integral equation (EFIE) and magnetic field integral equation (MFIE) were solved using the Nystrom method to obtain the reflected intensity as a function of observation angle. Verification of the accuracy of the code was obtained by …
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Transient Electromagnetic Analysis for Microstrip Structures Based on Time Domain Integral Equation Method
… attention. This thesis focuses on time domain integral equation methods, also known as time domain method of moments (TD-MOM), for analyzing scattering and radiation problems. TD-MOM schemes are applied to problems involving four different environments: three-dimensional (3D) free space, …
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A study on computational electromagnetics problems with applications to casimir force calculations
… the evaluation of semi-infinite Sommerfeld integrals which prove to be a costly venture. An interpolation scheme is proposed here to allow for more efficient calculations of the Sommerfeld integrals. The interpolation is unique by its reuse of the same interpolation matrix to estimate the …
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Computation of multiscale time-harmonic electromagnetic radiation
… wavelength-scale features) is modeled with the electric field integral equation (EFIE), and it interfaces with the installation site using the equivalence principle algorithm (EPA) as a domain decomposition method (DDM). The use of EPA to enclose the EFIE-modeled antenna generalizes the method …
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Model-order reduction techniques for the numerical solution of electromagnetic wave scattering problems
… model-order reduction (MOR) techniques for the field of computational electromagnetics in relation to the electric field integral equation (EFIE) formulation. The ultimate goal is to enable a fast-sweep analysis. In a fast-sweep problem, some parameter on which the original problem depends is …
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Rough Surface Scattering and Propagation over Rough Terrain in Ducting Environments
… of modeling this problem is the parabolic wave equation (PWE) method. In this method, the Helmholtz wave equation is replaced by a PWE under the assumption of predominant forward propagation and scattering. The resulting PWE subjected to the appropriate boundary condition(s) is then solved, …
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On improving the low-frequency performance of full-wave modeling techniques
… formulation and the curl operation on the electric field in the finite element formulation. Although this phenomenon has different physical meanings in these two methods, it can be interpreted in the same way in terms of their matrix equations. Both the moment method matrix and the finite …
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Integral-Equation Modelling of Metasurfaces via the Impedance Boundary Condition
L'abstract è presente nell'allegato / the abstract is in the attachment