Toshihide Tosaka

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We have developed a new measurement device called Dual Focus Flat Cavity (DFFC) that can measure the shielding effectiveness (SE) of a material up to a frequency of 33 GHz. SE depends on the measurement setup, and therefore, characteristics inherent to materials, such as sheet resistance, should be evaluated. In this study, we estimated the sheet resistance(More)
We developed the estimation system of electric parameters. For the non-magnetic materials, the estimated relative permeability was the same as the nominal values. For the ferromagnetic materials, the estimated relative permeability varied 0% to 30% from the nominal values. For both types of materials, the estimated conductivities were 0% to 9.8% different(More)
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