Yun-Sheng Xu

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This paper describes six functional extensions to the oneSAF testbed baseline (OTB) modeling and simulation environment: (1) the addition of modules to access OTB's terrain database, (2) a supervised, on-line "batch-mode" interface to OTB for running experiments, (3) the addition of virtual reality (VR) agent proxies for integration with a low-cost,(More)
A novel printed antenna is presented for ultrawideband applications. The configurations are etched onto a piece of printed circuit board with the size of 37mm×35mm× 0.5mm. The performances of the antenna are investigated numerically and experimentally. Parametric studies have also been carried out for the antenna. The results demonstrate that this wide slot(More)
The aim of the study was to expand the substrate scope of Gliocladium deliquescens NRRL 1086 and generate coumarin glycosides using 4-methylumbelliferone (4-MU) as a substrate. The obtained results indicated that 4-MU can be metabolized to its glucoside (M1) and sulfate conjugate (M2), and the structures of the metabolites were elucidated by spectroscopic(More)
The characteristics of a Y-shaped time-domain ultra-wideband antenna array are analyzed in this paper. The structure of the array is planar and composed of three linear arrays with constant 120-degree adjacent angle around one common endpoint. Radiation performances, including the fidelity of waveform and directional energy patterns of radiated signals can(More)
In this paper, design and analysis of two compact coplanar waveguide (CPW) fed ultra wideband (UWB) slot antenna is presented. The proposed antenna consists of a rectangular slot on a ground plane and a triangular patch and another semi-circular patch at the interior portion of the feed that acts as tuning stub of the antenna. The return loss of the(More)
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