Overview of EM Research in the Electromagnetic Research Branch at the Langley Research Center

This overview presentation summarizes primarily the Electromagnetic (EM) research activities ongoing within the Electromagnetic Research Branch (ERB) as well as future research opportunities in computational electromagnetics (CEM) applications. A description of EM test facilities and laboratories, including measurement capabilities is presented. Also, current and anticipated CEM research in scattering, radiation, field penetration, and interference are addressed. Emphasis is from the prespec-tive of ERB’s research needs and requirements, especially those relating to the choice of analytical techniques for problem solution and efficient matrix solvers. Specific research programs discussed include analytical electromagnetic environment (EME) research for advanced subsonic technology such as the Fly-By-Light/Power-By-Wire (FBL/PBW) program; flight crucial aeronautics technology for flight crucial aircraft systems; and CEM research for advanced, composite material design applications.

[1]  M. Deshpande,et al.  A new approach to estimate complex permittivity of dielectric materials at microwave frequencies using waveguide measurements , 1997 .

[2]  E. K. Miller,et al.  Computational electromagnetics : frequency-domain method of moments , 1992 .

[3]  J. Volakis,et al.  A hybrid finite element-boundary integral method for the analysis of cavity-backed antennas of arbitrary shape , 1994 .

[4]  Estimation Of Complex Permittivity Of Printed Circuit Board Material Using Waveguide Measurements , 1996 .

[5]  M. Deshpande,et al.  Application of AWE for RCS Frequency Response Calculations Using Method of Moments , 1996 .

[6]  Jianming Jin,et al.  A hybrid finite element method for scattering and radiation by microstrip path antennas and arrays residing in a cavity , 1991 .

[7]  Tapan K. Sarkar,et al.  Electromagnetic scattering from dielectric bodies , 1989 .

[8]  Jianming Jin,et al.  Scattering and radiation analysis of three-dimensional cavity arrays via a hybrid finite-element method , 1993 .

[9]  M. Deshpande,et al.  Calculation of radiation characteristics of cavity‐backed aperture antennas using a combined finite element method, method of moments, and geometrical theory of diffraction technique , 1996 .

[10]  O O Storaasli,et al.  Performance of NASA Equation Solvers on Computational Mechanics Applications , 1996 .

[11]  C. Balanis.  Advanced Engineering Electromagnetics , 1989 .

[12]  M. Deshpande,et al.  Electromagnetic Scattering Analysis of Arbitrarily Shaped Material Cylinder by FEM-BEM Method , 1996 .

[14]  M. Deshpande,et al.  Electromagnetic Scattering From a Rectangular Cavity Recessed in a 3-D Conducting Surface , 1995 .

[15]  M. Deshpande,et al.  Application of modal expansion and method of moments to study electromagnetic scattering from a rectangular cavity recessed in a three‐dimensional conducting surface , 1996 .

[16]  T. K. Tang,et al.  Analysis of lossy multiconductor transmission lines using the asymptotic waveform evaluation technique , 1991 .

[17]  William H. Press,et al.  Numerical recipes : the art of scientific computing : FORTRAN version , 1989 .

[18]  M. D. Deshpande,et al.  Radiation characteristics of cavity backed aperture antennas in finite ground plane using the hybrid FEM/MoM technique and geometrical theory of diffraction , 1996 .

[19]  John L. Volakis,et al.  AWE implementation for electromagnetic FEM analysis , 1996 .

[20]  A. Taflove,et al.  Electromagnetic scattering by arbitrary shaped three-dimensional homogeneous lossy dielectric objects , 1986 .

[21]  W. Press,et al.  Numerical Recipes: The Art of Scientific Computing , 1987 .

[22]  D. Wilton,et al.  Potential integrals for uniform and linear source distributions on polygonal and polyhedral domains , 1984 .

[23]  Lawrence T. Pileggi,et al.  Asymptotic waveform evaluation for timing analysis , 1990, IEEE Trans. Comput. Aided Des. Integr. Circuits Syst..

[24]  T. Sarkar,et al.  RCS of two-dimensional structures consisting of both dielectrics and conductors of arbitrary cross section , 1989 .

[25]  Z. Cendes,et al.  Spurious modes in finite-element methods , 1995 .

[26]  M. Deshpande,et al.  Analysis of Elliptically Polarized Cavity Backed Antennas Using a Combined FEM/MoM/GTD Technique , 1995 .

[27]  D. Wilton,et al.  Electromagnetic scattering by surfaces of arbitrary shape , 1980 .

[28]  Jianming Jin,et al.  Edge-based finite elements and vector ABCs applied to 3-D scattering , 1992 .

[29]  William H. Press,et al.  Numerical recipes in C. The art of scientific computing , 1987 .

[30]  C. Cockrell,et al.  Asymptotic Waveform Evaluation (AWE) Technique for Frequency Domain Electromagnetic Analysis , 1996 .

[31]  Carole Michel Azur.  Radiation characteristics of cavity-backed aperture antennas , 1996 .