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The authors proposed a new method for measuring the degradation level of the transformer insulating oil through comparison of the relative permittivity of the reference oil with that of the degraded oil. The relative permittivity of the reference insulating oil was derived from Cole-Cole parameter with a temperature obtained by a curve fitting method and that of the degraded one was measured using...
We have presented the buffer layer for increasing the forward receiving power of a receiving antenna and the absorber for decreasing the external noise. If acquiring the electrical properties of a buffer layer and an absorber through many experiments or simulation works, we may obtain the results better than those of this paper. Also, the absorber can be fabricated by using a shielding sheet in which...
Simultaneous measuring method for complex permittivity and permeability is proposed. The proposed twoport probe has a simple structure which is composed of uncovered transmission line to complement a conventional twoport probe which measures only one unknown material within it. Theproposed method has a wideband feature and can take an accurate measurement. Using the equivalent circuit model for the...
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