Higher Order Inhomogeneous Impedance Boundary Conditions for Perfectly Conducting Objects

Reconstruction of surface impedance of an object located over a planar PEC surface

“…To this aim, a circular domain is considered which covers the perfectly conducting object to be reconstructed and set an equivalent problem by imposing an inhomogeneous surface impedance Z(φ) on the new circular boundary (See figure 3). If the object has a slightly varying and smooth boundary, it can be represented in terms of a standard impedance boundary condition [5] and the following relation is valid between the surface function ( )…”

“…Then the surface impedance is reconstructed via the method described above from the measured values of the scattered field due to the object to be reconstructed. The determination of the surface impedance is achieved using the explicit expression between the surface impedance and the shape of the actual object given in [5] the determination of the shape is achieved. The method is very effective for the reconstruction of smooth and slightly varying impedances.…”

Comments on electromagnetic scattering from inhomogeneous impedance periodic rough surfaces by transform technique

“…On the other hand, (5) cannot be considered as a HIBC on a circular boundary with radius a as it contains derivatives with respect to f, which means that an arbitrary shaped object with SIBC cannot be transformed into HIBC on a circle as claimed in [1]. As was shown in [2], this can be done only for the perfectly conducting objects with boundary condition E(q,f) ¼ 0, q ¼ f(f). …”

Comments on “Higher order Inhomogeneous Impedance Boundary Conditions for Perfectly Conducting Objects”

“…Recently, Ö zdemir et al [1] presented new method for electromagnetic scattering from arbitrary shaped perfectly electrical conducting (PEC) objects. In the study [1], high-order impedance functions of circle covering the object is obtained by Taylor expansion of total field ϭ a straightforwardly as,…”

“…In the study [1], high-order impedance functions of circle covering the object is obtained by Taylor expansion of total field ϭ a straightforwardly as,…”