Search for dissertations about: "wide band"
Showing result 1 - 5 of 231 swedish dissertations containing the words wide band.
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1. Wide-angle scanning wide-band phased array antennas
Abstract : This thesis considers problems related to the design and the analysis of wide-angle scanning phased arrays. The goals of the thesis are the design and analysis of antenna elements suitable for wide-angle scanning array antennas, and the study of scan blindness effects and edge effects for this type of antennas. READ MORE
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2. Optical characterization of wide band gap materials by spectroscopic ellipsometry
Abstract : Spectroscopic ellipsometry has been employed in the study of wide band gap materials. Ellipsometry is based on the study of changes in the polarization state of light upon reflection on a surface. READ MORE
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3. Modelling of wide-band ionospheric HF channels
Abstract : .... READ MORE
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4. Efficient Realizations of Wide-Band and Reconfigurable FIR Systems
Abstract : Complexity reduction is one of the major issues in today’s digital system designfor many obvious reasons, e.g., reduction in area, reduced power consumption,and high throughput. READ MORE
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5. Extreme Implementations of Wide-Bandgap Semiconductors in Power Electronics
Abstract : Wide-bandgap (WBG) semiconductor materials such as silicon carbide (SiC) and gallium-nitride (GaN) allow higher voltage ratings, lower on-state voltage drops, higher switching frequencies, and higher maximum temperatures. All these advantages make them an attractive choice when high-power density and high-efficiency converters are targeted. READ MORE