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An electromagnetic invisibility cloak featuring an elliptic inner and a circular outer boundary was presented. Explicit design equations were given. The performance of the designed cloaks for different angles of incidence and shielded object dimensions were verified by full-wave EM simulations. The proposed configuration leads to more flexible geometries for invisibility cloaks.
The use of stripline, rather than coaxial, load configurations for isentropic compression experiments (ICE) on Sandia's Z accelerator has recently become commonplace. Such loads offer many advantages over previously-developed coaxial loads, but also introduce new issues. In this paper, we will describe the behavior of these stripline loads and examine some of the issues that arise through their use.
Joint Time-Frequency Analysis (JTFA) can estimate the speed of moving targets in Synthetic Aperture Radar (SAR) images. These targets are usually solid targets. JTFA estimation of water surface speeds is more difficult since the returns are generated by Bragg scattering epochs that are randomly distributed in the radar's footprint - in both time and space. The spectral characterization of these returns...
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