Search for dissertations about: "periodic structure"
Showing result 1 - 5 of 162 swedish dissertations containing the words periodic structure.
-
1. Analysis of Conformal Antennas and Periodic Structures
Abstract : In the last decades much attention has been paid to the design of high-performance antennas. Accurate control of the radiation properties is very important in electromagnetic engineering applications. READ MORE
-
2. Nonlinear Approaches to Periodic Signal Modeling
Abstract : Periodic signal modeling plays an important role in different fields. The unifying theme of this thesis is using nonlinear techniques to model periodic signals. The suggested techniques utilize the user pre-knowledge about the signal waveform. This gives these techniques an advantage as compared to others that do not consider such priors. READ MORE
-
3. Scattering and propagation of electromagnetic waves in planar and curved periodic structures - applications to plane wave filters, plane wave absorbers and impedance surfaces
Abstract : 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. READ MORE
-
4. Acoustic excitation and transmission of lightweight structures
Abstract : In order to increase our knowledge of the sound transmission and radiation processes of lightweight wall and floor structures, theoretical models are needed. Detailed models may form a valuable tool. In lightweight floor structures, impact sound insulation is perhaps the most important property to consider. READ MORE
-
5. On the analysis of soft surfaces, frequency selective surfaces and conformal antennas
Abstract : .... READ MORE