Search for dissertations about: "high impedance surface"
Showing result 11 - 15 of 62 swedish dissertations containing the words high impedance surface.
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11. Integrated biomechanical, electronic and topographic characterization of titanium dental implants
Abstract : Titanium dental implants are medical devices used to restore the function entailed with the loss of one or several teeth. To obtain successful function over long periods, the dental implants must be sufficiently anchored in the bone to withstand the forces induced by for example chewing. READ MORE
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12. The RDGT - Integration of Micromechanics and Electronics by Plasma Assisted Wafer Bonding
Abstract : A high-resolution capacitive sensing technique is presented in this thesis: the Resonant Double Gate Transistor (RDGT). The major advantage of the RDGT compared to "pure" capacitive sensing techniques is its low output impedance because of the direct capacitance to current conversion of the transistor. READ MORE
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13. Monocrystalline-Silicon Based RF MEMS Devices
Abstract : This thesis presents novel radio-frequency microelectromechanical (RF MEMS) devices, for microwave and millimeter wave applications, designed for process robustness and operational reliability using monocrystalline silicon as structural material. Two families of RF MEMS devices are proposed. READ MORE
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14. High Power, Long Wavelength Semiconductor Disk Lasers for Continuous and Mode-Locked Operation
Abstract : The semiconductor disk laser has recentlyemerged as an attractive alternative to bulky and power consuming gas and solid state lasers. It offers compact, powerful and efficient devices with W level output power and beam properties earlier not achieved with semiconductor lasers. READ MORE
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15. 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