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Showing 1 to 7 of 7 for “"Numerical Electromagnetics"”.

  1. An investigation of alternating-direction implicit finite-difference time-domain (ADI-FDTD) method in numerical electromagnetics

    Ow, Say CheohUniversity of Hull2003

    … reason for this is to be able to use a larger numerical time step than that governed by the CFL criterion. The desired effect is a significant reduction in numerical run-times. Although the ADI-FDTD method has been used in the literature, most analysis and application have been performed on …

    hull Repository record

  2. The Stub Loaded Helix: A Reduced Size Helical Antenna

    Barts, Robert MichaelVirginia Tech2003

    … the use of computer simulations using NEC (Numerical Electromagnetics Code) to study the effects of design parameter variations. Based on those simulations, design guides are developed. The numerical simulations are verified though measurements of experimental prototypes. The program of …

    vt Repository record

  3. Multifilar Hemispherical Helical Antennas

    Clark, Jeffrey R.Virginia Tech2003

    … designs which are studied in detail both numerically and experimentally. The Numerical Electromagnetics Code 4 is used to analyze the radiation characteristics of the proposed multifilar hemispherical helices. Directivity, E- and H-plane radiation patterns, axial ratio and input impedance …

    vt Repository record

  4. INVESTIGATION OF SMALL ANTENNAS FOR PERSONAL HANDY PHONE USE

    YE KA1997

    … use have been designed and analyzed using the Numerical Electromagnetics Code (NEC). First is the Modified Transmission Line Antenna (MTLA). It can provide a good impedance matching to 50Q at a very broad frequency band by selecting the total length of MTLA around 0.561. The input impedance and …

    nus Repository record

  5. Modeling the propagation, scanning and optimization of focused light beams in scattering media

    Elmaklizi, AhmedUniversität Ulm

    ulm-diss Repository record

  6. The Unified-FFT Method for Fast Solution of Integral Equations as Applied to Shielded-Domain Electromagnetics

    Rautio, Brian J.

    … that such a fast solver can be accurate to numerical precision as compared to a full, direct analysis. It is shown to provide even more algorithmic efficiency and faster performance than UFFT-P. UFFT-GT makes an additional contribution in that it is developed not only for planar geometries, …

    syracuse-diss Repository record

  7. Methodologies for electromagnetic field modeling for computer aided analysis of multi-domain physical interactions

    Russer, Johannes A.University of Illinois at Urbana-Champaign2010

    … multi-time partial differential equations to the numerical solution of one-dimensional electromagnetic wave interactions involving highly disparate temporal variations in both excitation and time-varying media properties and boundary conditions. The temporal oversampling requirement is relaxed by …

    uiuc Repository record