Seagate Technology Thailand Co. Samutprakarn

Thailand

Seagate Technology Thailand Co. Samutprakarn

Thailand
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Prachumrasee K.,Khon Kaen University | Kaewrawang A.,Khon Kaen University | Siritaratiwat A.,Khon Kaen University | Sivaratana R.,Seagate Technology Thailand Co. Samutprakarn | Kruesubthaworn A.,Khon Kaen University
International Journal of RF and Microwave Computer-Aided Engineering | Year: 2014

As the areal density rapidly changes, the signal reflection increases. In order to avoid the reflection between a magnetic recording head and a read/write driver on hard disk drive interconnects (HDDIs), the windowing technique is used to keep low insertion loss and it causes the higher crosstalk between lines. In this work, the crosstalk on idealized HDDI with windowing is investigated. The crosstalk represented by the scattering parameters calculated by using the full wave simulation software based on finite integral technique. From the results, the improvement of insertion loss and transmission bandwidth (-3 dB bandwidth) can be found when the window percentage is increased. For the 90% windowed structure, these are improved as 4.27 dB at 1 GHz and 4.53 GHz comparing with the conventional structure, respectively. Besides, the crosstalk increases with the increasing of window percentage. However, it can be suppressed up to 5.68 dB in a range of 0.24-1 GHz when the window percentage is 90%. Furthermore, the 90% of windowed structure with 8 mm window pitch possess the lowest crosstalk about 30.22 dB in a range of 0.32-6.4 GHz. In addition, the placing position of windows in a reference plane with a half of the rest length at both ends should be avoided because it increases both crosstalk and insertion loss. © 2013 Wiley Periodicals, Inc.

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