Kazunori Yamagata

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A numerical technique for the design, optimization and realization of antennas with mechanically/MEMS-enabled moving parts is proposed. The accuracy of this technique is evaluated through the calculation of the numerical results that express the relation between the velocity of the moving parts and the S11 parameters.
For the design, optimization and realization of frequency selectable patch antennas , a numerical technique for the analysis of antennas with mechanically/MEMS-enabled moving parts is proposed. The accuracy of this technique is evaluated through the calculation of the numerical results that express the relation between the velocity of the moving part and(More)
Many semistructured data such as HTML/XML files are represented by rooted trees t such that all children of each internal vertex of t are ordered and all edges of t have labels. Such data is called tree structured data. Analyzing large tree structured data is a time-consuming process in data mining. If we can reduce the size of input data without loss of(More)
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