Forward electromagnetic scattering models for sea ice

Journal ArticleRecent advances in forward modeling of the electromagnetic scattering properties of sea ice are presented. In particular, the principal results include the following: 1) approximate calculations of electromagnetic scattering from multilayer random media with rough interfaces, based on the distorted Born approximation and radiative transfer (RT) theory; 2) comprehensive theory of the effective complex permittivity of sea ice based on rigorous bounds in the quasi-static case and strong fluctuation theory in the weakly scattering regime; 3) rigorous analysis of the Helmholtz equation and its solutions for idealized sea ice models, which has led in the one dimensional (1-D) case to nonlinear generalizations of classical theorems in Fourier analysis

Electromagnetic Wave Theory and Applications

Contains table of contents for Section 3, reports on nine research projects and a list of publications.National Aeronautics and Space Administration Contract 958461U.S. Navy - Office of Naval Research Grant N00014-92-J-1616University of California/Jet Propulsion Laboratory Contract 960408U.S. Army - Corps of Engineers/Cold Regions Research and Engineering Laboratory Contract DACA89-95-K-0014Mitsubishi CorporationU.S. Navy - Office of Naval Research Agreement N00014-92-J-4098Federal Aviation AdministrationDEMACOJoint Services Electronics Program Grant DAAHO4-95-1-003

Electromagnetic Wave Theory and Applications

Contains table of content for Section 3, reports on ten research projects and a list of publications.U.S. Navy - Office of Naval Research Contract N00014-92-J-4098U.S. Federal Aviation Administration Contract 94-G-007U.S. Federal Aviation Administration Contract 97-G-031California Institute of Technology Contract JPL 960408National Aeronautics and Space Administration Contract JPL 958461U.S. Navy - Office of Naval Research Contract N00014-92-J-1616National Science Foundation Grant ECS 96-15799U.S. Navy - Office of Naval Research Contract N00014-97-1-0172Joint Services Electronics Program Contract DAAH04-95-1-0038Mitsubishi Corporatio

Electromagnetic Wave Theory and Applications

Contains table of contents for Section 3 and reports on four research projects.California Institute of Technology/Jet Propulsion Laboratory Agreement 959548National Aeronautics and Space Administration Grant NAGW-1617National Aeronautics and Space Administration Agreement 958461U.S. Navy - Office of Naval Research Grant N00014-89-J-1107U.S. Navy - Office of Naval Research Grant N00014-92-J-1616U.S. Navy - Office of Naval Research Grant N00014-92-J-4098Digital Equipment CorporationJoint Services Electronics Program Contract DAAL03-92-C-0001U.S. Navy - Office of Naval Research Agreement N00014-90-J-1002U.S. Navy - Office of Naval Research Agreement N00014-89-J-1019DEMACOU.S. Army Cold Regions Research and Engineering Laboratory Contract DACA89-93-K-0009U.S. Department of Transportation Agreement DTRS-57-92-C-00054TTD1Advanced Research Projects Agency/Consortium for Superconducting Electronics Contract MDA972-90-C-0021National Science Foundation Fellowship MIP 88-58764National Science Foundatio

Broadband Green's function with higher order extractions for arbitrary shaped waveguide obeying Neumann boundary conditions

The broadband Green's function with low wavenumber extraction (BBGFL) consists of low wavenumber method of moments (MoM) solutions combined with modal representations of Green's functions. BBGFL is suitable for broadband simulations because the modal functions are independent of frequencies. In this paper, we extend the formulation of the higher-order extraction method (sixth-order convergence) to an arbitrarily-shaped homogeneous waveguide obeying Neumann boundary conditions. Results from BBGFL are in good agreement with those computed by direct MoM and HFSS. This method can be applied to exact, fast and broadband computation of multiple resonant frequencies and modes of arbitrarily-shaped PCB power/ground planes

Broadband Green's function with higher order extractions for arbitrary shaped waveguide obeying Neumann boundary conditions

The broadband Green's function with low wavenumber extraction (BBGFL) consists of low wavenumber method of moments (MoM) solutions combined with modal representations of Green's functions. BBGFL is suitable for broadband simulations because the modal functions are independent of frequencies. In this paper, we extend the formulation of the higher-order extraction method (sixth-order convergence) to an arbitrarily-shaped homogeneous waveguide obeying Neumann boundary conditions. Results from BBGFL are in good agreement with those computed by direct MoM and HFSS. This method can be applied to exact, fast and broadband computation of multiple resonant frequencies and modes of arbitrarily-shaped PCB power/ground planes