Search Results - "Eibert, T.F."

Surface Integral Equation Solutions by Hierarchical Vector Basis Functions and Spherical Harmonics Based Multilevel Fast Multipole Method by Ismatullah, Eibert, T.F.

“…The method of moments solution of electromagnetic surface integral equation formulations for perfect electric conductors or impedance boundary objects is…”
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Comparison and Application of Near-Field ISAR Imaging Techniques for Far-Field Radar Cross Section Determination by Vaupel, T., Eibert, T.F.

“…Inverse synthetic aperture radar (ISAR) imaging is a powerful tool for the characterization of scattering properties of radar targets. In particular,…”
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Multilevel Fast Multipole Accelerated Inverse Equivalent Current Method Employing Rao-Wilton-Glisson Discretization of Electric and Magnetic Surface Currents by Eibert, T.F., Schmidt, C.H.

“…The radiation of any object in a homogeneous environment can be described by a set of equivalent sources. Different types of equivalent sources are feasible…”
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A diagonalized multilevel fast multipole method with spherical harmonics expansion of the k-space Integrals by Eibert, T.F.

“…Diagonalization of the fast multipole method (FMM) for the Helmholtz equation is usually achieved by expanding the multipole representation in propagating…”
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Fully Probe-Corrected Near-Field Far-Field Transformation Employing Plane Wave Expansion and Diagonal Translation Operators by Schmidt, C.H., Leibfritz, M.M., Eibert, T.F.

“…Near-field antenna measurements combined with a near-field far-field transformation are an established antenna characterization technique. The approach avoids…”
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Adaptive Singularity Cancellation for Efficient Treatment of Near-Singular and Near-Hypersingular Integrals in Surface Integral Equation Formulations by Ismatullah, Eibert, T.F.

“…A proposed singularity cancellation technique for fully numerical evaluation of method of moments integrals in surface integral equation solutions produces…”
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A hybrid FEBI-MLFMM-UTD method for numerical solutions of electromagnetic problems including arbitrarily shaped and electrically large objects by Tzoulis, A., Eibert, T.F.

“…Numerical solutions of electromagnetic scattering and radiation problems including arbitrarily shaped objects are obtained by solving integral equations with…”
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Efficient electromagnetic near-field computation by the multilevel fast multipole method employing mixed near-field/far-field translations by Tzoulis, A., Eibert, T.F.

“…Method of moments (MoM) solutions of electromagnetic surface integral equations provide the desired amplitudes of the equivalent surface currents on the…”
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Radiation efficient unidirectional low-profile slot antenna elements for X-band application by Locker, C., Vaupel, T., Eibert, T.F.

“…Slot apertures in metallic ground planes are very attractive candidates for conformal antenna applications. However, a low-profile unidirectional antenna…”
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A Dipole Excited Ultrawideband Dielectric Rod Antenna With Reflector by Blech, M.D., Eibert, T.F.

“…A novel very compact ultrawideband dielectric rod antenna with metallic reflector is presented. The desired HE11 mode on the rod is excited by a biconical…”
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Unidirectional Radiation Efficient Stacked Aperture Antenna for X-Band Application by Locker, C., Eibert, T.F.

“…Presented is a unidirectional slot aperture antenna for wideband operation, which is composed of two stacked bow-tie apertures backed by a metallic reflector…”
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Ray Optical Electromagnetic Far-Field Scattering Computations Using Planar Near-Field Scanning Techniques by Tzoulis, A., Vaupel, T., Eibert, T.F.

“…For accurate scattering computations in the far-field of flat finite objects, field based ray optical methods cannot be used directly, since the finiteness of…”
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Correction to "On the Calculation of Potential Integrals for Linear Source Distributions on Triangular Domains" by Sievers, D., Eibert, T.F., Hansen, V.

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Hybrid finite element-fast spectral domain multilayer boundary integral modeling of doubly periodic structures by Eibert, T.F., Erdemli, Y.E., Volakis, J.L.

“…Hybrid finite element (FE)-boundary integral (BI) analysis of infinite periodic arrays is extended to include planar multilayered Green's functions. In this…”
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Iterative near-zone preconditioning of iterative method of moments electric field integral equation solutions by Eibert, T.F.

“…A preconditioning operator for the iterative solution of the electric field integral equation as applied to metallic scattering objects is iteratively computed…”
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Notes on semiempirical terrestrial wave propagation modeling for macrocellular environments - comparisons with measurements by Eibert, T.F., Kuhlmann, P.

“…Due to their low computational requirements, two-dimensional semiempirical wave propagation algorithms are still indispensable tools for terrestrial mobile…”
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On a refinement-free Calderón multiplicative preconditioner for the electric field integral equation by Adrian, S.B., Andriulli, F.P., Eibert, T.F.

“…We present a Calderón preconditioner for the electric field integral equation (EFIE), which does not require a barycentric refinement of the mesh and which…”
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A hierarchical preconditioner for the electric field integral equation on unstructured meshes based on primal and dual Haar bases by Adrian, S.B., Andriulli, F.P., Eibert, T.F.

“…A new hierarchical basis preconditioner for the electric field integral equation (EFIE) operator is introduced. In contrast to existing hierarchical basis…”
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A fast Fourier transform accelerated Ewald summation technique for the vector electromagnetic rectangular cavity Green's function by Gruber, M.E., Koenen, C., Eibert, T.F.

“…A fast Fourier transform accelerated Ewald method for the computation of the vector electromagnetic rectangular cavity Green's function in terms of the…”
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Multilevel Plane Wave Based Near-Field Far-Field Transformation for Electrically Large Antennas in Free-Space or Above Material Halfspace by Schmidt, Carsten H., Eibert, Thomas F.

“…A recently presented fully probe-corrected near-field far-field transformation employing plane wave expansion and diagonal translation operators enables…”
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