Sökning: "Electromagnetic scattering"
Visar resultat 6 - 10 av 94 avhandlingar innehållade orden Electromagnetic scattering.
6. Interaction between Electromagnetic Waves and Localized Plasma Oscillations
Sammanfattning : This thesis treats interaction between electromagnetic waves and localized plasma oscillations. Two specific physical systems are considered, namely artificially excited magnetic field-aligned irregularities (striations) and naturally excited lower hybrid solitary structures (LHSS). LÄS MER
7. Computational Methods and Measurements for Direct and Inverse Scattering of Microwaves
Sammanfattning : Electromagnetic waves are widely used in society today for a multitude of applications. Design of electromagnetic devices and applications requires accurate methods for evaluating performance, which often means modern computational methods. LÄS MER
8. Scattering and propagation of electromagnetic waves in planar and curved periodic structures - applications to plane wave filters, plane wave absorbers and impedance surfaces
Sammanfattning : The subject of this thesis is scattering of electromagneticwaves from planar and curved periodic structures. The problemspresented are solved in the frequency domain.Scattering from planar structures with two-dimensionalperiodic dependence of constitutive parameters is treated. LÄS MER
9. On electromagnetic scattering processes at high energies
Sammanfattning : .... LÄS MER
10. Integral Identities for Passive Systems and Spherical Waves in Scattering and Antenna Problems
Sammanfattning : Sum rules and physical limitations within electromagnetic theory and antenna theory have received significant attention in the last few years. However, the derivations are often relying on application specific and sometimes unsupported assumptions, and therefore a mathematically rigorous and generally applicable approach seems timely. LÄS MER