Search Results - "Eibert, T."

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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Precipitation observation using microwave backhaul links in the alpine and pre-alpine region of Southern Germany by Chwala, C, Gmeiner, A, Qiu, W, Hipp, S, Nienaber, D, Siart, U, Eibert, T, Pohl, M, Seltmann, J, Fritz, J, Kunstmann, H

“…Measuring rain rates over complex terrain is afflicted with large uncertainties, because rain gauges are influenced by orography and weather radars are mostly…”
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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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Fast near-field far-field transformation for phaseless and irregular antenna measurement data by Schnattinger, G, Lopez, C, Kılıç, E, Eibert, T. F

“…The characterization of antenna radiation patterns by transformed near-field measurements requires accurate amplitude and phase data. This represents a problem…”
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Phaseless spherical near-field antenna measurements for low and medium gain antennas by Schmidt, C. H, Razavi, S. F, Eibert, T. F, Rahmat-Samii, Y

“…The characterisation of antenna radiation patterns by measurements in the near-field and a following near-field far-field transformation require accurate…”
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The effect of near-zone preconditioning on electromagnetic integral equations of first and second kind by Wiedenmann, O, Eibert, T. F

“…The linear equation systems which arise from the discretization of surface integral equations are conveniently solved with iterative methods because of the…”
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Analytical finite element matrix elements and global matrix assembly for hierarchical 3-D vector basis functions within the hybrid finite element boundary integral method by Li, L, Wang, K, Li, H, Eibert, T. F

“…A hybrid higher-order finite element boundary integral (FE-BI) technique is discussed where the higher-order FE matrix elements are computed by a fully…”
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A fast three-dimensional deterministic ray tracing coverage simulator for a 24 GHz anti-collision radar by Azodi, H, Siart, U, Eibert, T. F

“…A matrix-based approach for implementation of deterministic ray tracing is suggested and presented in this paper. The frequency-independent feature of the ray…”
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Metamaterials for Microwave Radomes and the Concept of a Metaradome: Review of the Literature by Öziş, E., Eibert, T. F., Osipov, A. V.

“…A radome is an integral part of almost every antenna system, protecting antennas and antenna electronics from hostile exterior conditions (humidity, heat,…”
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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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Start Vector Estimation for Iterative Multiple-Frequency Inverse Source Solutions by Eibert, T. F.

“…The iterative solution of inverse source problems for multiple frequencies can be accelerated by start vector estimates obtained from already available…”
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A fully probe corrected near-field far-field transformation technique employing plane-wave synthesis by Mauermayer, R. A. M, Eibert, T. F

“…The far-field behavior of an antenna under test (AUT) can be obtained by exciting the AUT with a plane wave. In a measurement, it is sufficient if the plane…”
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Multi-sensor Doppler radar for machine tool collision detection by Wächter, T. J, Siart, U, Eibert, T. F, Bonerz, S

“…Machine damage due to tool collisions is a widespread issue in milling production. These collisions are typically caused by human errors. A solution for this…”
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Scattering centers modeling of non-anechoic measurement environments by Yinusa, K. A, Schmidt, C. H, Eibert, T. F

“…Near-field measurements are established techniques to obtain the far-field radiation pattern of an Antenna Under Test via near-field measurements and…”
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Local microwave heating of sand molds as a means to overcome design limitations in sand mold casting by Wiedenmann, O, Ramakrishnan, R, Saal, P, Kılıç, E, Siart, U, Eibert, T. F, Volk, W

“…Microwave induced selective heating outmatches conventional mold heating by convective heat transfer in means of energy efficiency and cycle time. Moreover, it…”
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Ray tracing with multi-radiation transmitters by Brem, R, Eibert, T. F

“…A restriction in using electromagnetic ray tracing for field prediction is given by the far-field condition: the results are only valid in the far-field region…”
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Properties of axial surface waves along dielectrically coated conducting cylinders by Siart, U, Adrian, S, Eibert, T

“…In this paper the fundamental properties of surface waves along conducting cylinders with and without dielectric coating are investigated for cylinder…”
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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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Design and analysis of an isotropic two-dimensional planar Composite Right/Left-Handed waveguide structure by EberspÈñcher, M. A, Bauer, M, Eibert, T. F

“…A two-dimensional isotropic Composite Right/Left-Handed (CRLH) waveguide structure is proposed which is designed for operation in X-band. The balanced…”
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Comparison of electromagnetic solvers for antennas mounted on vehicles by Mocker, M S L, Hipp, S, Spinnler, F, Tazi, H, Eibert, T F

“…An electromagnetic solver comparison for various use cases of antennas mounted on vehicles is presented. For this purpose, several modeling approaches, called…”
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