1,720,972 research outputs found
Hybrid space discretizing-integral equation methods for numerical modeling of transient interference
No full textA Combination of Integral Equation Method and FD/TLM Method for Efficient Solution of EMC Problems
No full textIn this contribution we deal with the development of a novel hybrid Finite Difference-Integral Equation method (FDIE) in which the efficient Integral Equation method (I.E.) is combined with the very flexible Finite Difference method (FDTD) / the Transmission Line Matrix (TLM) method. With that the FDIE method has got the high flexibility of a space discretizing method and the efficiency of the Integral Equation method for the analysis of large homogeneous regions. So the FDIE method is applicable for the analysis of EMC problems. It makes possible the efficient computation of complex structures which are coupled by their far fields. In a typical EMC problem the method is applicated to the modeling of the radiation from apertures in metallic enclosures which is a. The numerical results of the FDIE method are compared with results obtained by the TLM method and with data from literature, showing a very good agreemen
Adapted Radiating Boundaries (ARB) for efficient time domain simulation of electromagnetic interferences
No full textThe novel method of Adapted Radiating Boundaries (ARB) is a very fast and powerful tool for the field simulation of electromagnetic interference in time domain. The ARB method shows a high stability of the algorithm and a very fast computational time. The ARB method is especially suitable for the efficient simulation of transient electromagnetic interferences between various lossy structures of complex geometr
A Hybrid Transmission Line Matrix-Integral Equation (TLMIE) Method for Efficient Solution of Electromagnetic Compatibility (EMC) Problems
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Efficient analysis and modelling of the radiation of microstrip lines and patch antennas by the TLM-integral equation (TLM-IE) method
No full textAnalysis of the EM coupling between satellite antennas
No full textIn this contribution we present an accurate modelling of the coupling between a GPS-antenna and a satellite radio antenna. The EM analysis is performed by means of the efficient Transmission Line Matrix-Integral Equation (TLMIE) method which permits to model complex 3D regions embedded in free-space regions. We calculate the return-loss of both the antennas and then their mutual near field coupling. With respect to the mutual EM coupling the characteristics of the complete antenna structure are calculated and used for an optimisation of the main lobe direction. The improvement is shown by experimental results
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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