EIGER: Electromagnetic Interactions GEneRalized

Integrating the gradient of the thin wire kernel

“…The near field of a 1-meter wire dipole with a radius of 1 mm is calculated and compared with results using EIGER [3]. The dipole is modeled using 20 linear segments and lies on the z axis.…”

“…has an integrand dominated by a 3 1 R behavior. This behavior is canceled by letting https://ntrs.nasa.gov/search.jsp?R=20080012478 2018-05-09T21:56:17+00:00Z ( ) ( )…”

Solution of Hybrid FEM-BEM Systems via Schur Complement Techniques

“…By itself equation (1) gives a system of linear equations Z x = y of dimension N = N EV +N ES ,+N HS where N EV is the number of volume electric field unknowns, N ES is the number of surface electric field unknowns, and N HS is the number of surface magnetic field unknowns. The above formulation is described in greater detail in [1], and is an example of one of many different hybrid FEM-BEM formulations recently added to LLNL's EIGER code [2].…”

“…Naturally the precise ratio of the sizes of the dense and sparse blocks is problem specific, but for many problems of interest the ratio is determined by the surface-to-volume ratio of the mesh. 2 The condition number of a matrix is χ Z Z Z b g=…”

Potential space applications for body-centric wireless and E-textile antennas

“…VSWR for the antennas was measured with an HP 8510 network analyzer and simulated using EIGER with PEC elements [10][11]. Figure 2 shows a comparison of measured and simulated VSWRs with the reference plane at the antenna feed.…”