A Study on Transmission Characteristics and EM Field Distributions on the Transmission Lines with Difference of Structure (国際セッションIS--EMD 2003) -- (Session 2 Measurements and evaluation)
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概要
- 論文の詳細を見る
In the next generation, hard disk drive (HDD) with the large storage capacity and the high density will require speed-up of the signal transmission and miniaturization of the size for the transmission lines. Hence, as the signal transmission line (STL) led from the magnetic head in HDD at high frequency should be investigated not only for signal integrity but for EMC. So, various structure of STL in the head part, which has appropriate characteristics, should be proposed. In this paper, the enlarged models, which have different structures on cross-section, are simulated as the transmission line in the magnetic head. To estimate the effect on transmission characteristics and Electromagnetic (EM) field distributions, four kinds of structures of STLs, (a)surface micro-strip, (b)embedded strip, (c)strip with conductive plate and (d)shielded strip, are compared by experiment and calculation. From the results of experiment and calculation, the difference of structure between (c)strip and (d)shield is inconsiderable for the transmission characteristics. The dips of the resonance frequency are small for (b)embedded at 1 GHz to 2 GHz. It is cleared that (c)strip and (d)shield are efficient for suppression of EMI by the measurement results of magnetic near field distributions.
- 社団法人電子情報通信学会の論文
- 2003-11-13
著者
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INOUE Hiroshi
Faculty of Engineering, Himeji Institute of Technology
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Takahashi Ken-ichi
Department Of Surgery Tohoku Rosai Hospital
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Takahashi Ken-ichi
Faculty Of Engineering And Resource Science Akita University:(present Office)nagano National College
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Kitayama Taku
Division Of Biological Regulation And Oncology Department Of Surgery Tohoku University Graduate Scho
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Kasuga T
Akita Univ. Akita‐shi Jpn
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Kasuga Takashi
Faculty Of Engineering And Resource Science Akita University
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Inoue H
Faculty Of Engineering And Resource Science Akita University
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Takahashi K
System Lsi Technology Development Center Corporate System Lsi Division Semiconductor Company Matsush
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Kitayama Taku
Department Of Surgery Division Of Gastrointestinal And Colorectal Surgery Tohoku University Graduate
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Inoue Hiroshi
Faculty Of Eng. Osaka Univ.
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