Electromagnetic Scattering by Mixed Conductor-Dielectric Bodies of Arbitrary Shape

Abstract

A volume-surface electric field integral equation method of moments formulation that makes use of rooftop basis functions defined over prism elements is presented. The new prism elements and their associated basis functions are designed to work either independently or in conjunction with basis functions previously defined over tetrahedral elements. Good agreement is found when comparing results obtained using the present formulation with analytical and experimental results.Index Terms-Antenna input impedance, electric field integral equation, method of moments (MoM), radar cross section.

A New Perspective on the Reactive Electromagnetic Energies and Q factors of Antennas

“…The first step is to determine all currents involved in the system, such as the induced currents on metal surfaces, the polarization currents in dielectrics, the magnetization currents in magnetic materials, and the currents in lossy media. This can be done using common methods that have been developed in the computational electromagnetic community, such as methods based on electric field integral equations (EFIEs) [15]- [18], volume integral equations (VIEs) [19] [20], and methods based on equivalence principles [21]- [24]. The second step is to calculate the radiation electromagnetic fields from these current sources, and then the stored reactive energies by integrating the energy densities in the whole space.…”

Numerical Analysis of the ElectromagneticShielding Effect of Reinforced Concrete Walls

“…6. T may be obtained using properly chosen method (Creticos & Schaubert, 2006;Lean, 2004;Polewski etal., 2004;Taskinen & Ylä-Oijala, 2006;Umashankar etal.,1986;). In this chapter, the generalized transition matrix of a two-layered block is obtained using the above described cascaded network technique.…”

The Reactive and Radiation Electromagnetic Energies of Antennas: A New Formulation

“…First, determine all currents involved in the system, such as the induced currents on metal surfaces, the polarization currents in dielectrics, the magnetization currents in magnetic materials, and the currents in lossy media. This can be done using common methods that have been developed in the computational electromagnetic community, such as methods based on electric field integral equations (EFIEs) [15]- [18], volume integral equations (VIEs) [19] [20], and methods based on equivalence principles [21]- [24]. Second, calculate the radiation electromagnetic fields from these current sources, and then the stored reactive energies by integrating the energy densities in the whole space.…”