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Surface impedance boundary conditions are used to take into account electromagnetic phenomena in thin layers. By exploiting a dual geometrical discretisation of the surface of a conducting object, it can be used to formulate the skin effect as a circuit. The mesh can be either structured or unstructured as in case of triangular elements. The surface circuit can be coupled to a boundary element method...
An extension of the discrete mode matching (DMM) method is used to analyze microstrip antennas conformed to cylinders. The structure needs to be discretized only along the azimuthal and the axial directions by sampling the fields and current densities in the interfaces between dielectric layers. The solution in the radial direction is obtained analytically with the dyadic Green's function, which is...
The results show that first-order LL linear basis functions may be successfully used to discretize the impedance boundary CFIE using an approach derived from that developed by Collino et al. The LL expansion yields lower errors in the calculated bistatic radar cross-section than that given by zero-order RWG basis functions with the same surface discretization mesh in all cases examined. However, LL...
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