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The dimensional effects of windowing on crosstalk for high speed hard disk drive interconnects

机译：加窗对高速硬盘驱动器互连的串扰的尺寸影响

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摘要

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. Int J RF and Microwave CAE 24:217–222, 2014.
机译：随着面密度的快速变化，信号反射会增加。为了避免磁记录头和硬盘驱动器互连（HDDI）上的读/写驱动器之间发生反射，使用开窗技术来保持较低的插入损耗，并导致线路之间的串扰较高。在这项工作中，研究了带有窗口​​的理想HDDI的串扰。使用基于有限积分技术的全波仿真软件计算的散射参数表示的串扰。从结果可以看出，当窗口百分比增加时，插入损耗和传输带宽（−3 dB带宽）将得到改善。对于90％的窗口结构，与常规结构相比，它们在1 GHz和4.53 GHz下分别提高了4.27 dB。此外，串扰随着窗口百分比的增加而增加。但是，当窗口百分比为90％时，它可以在0.24–1 GHz范围内被抑制至5.68 dB。此外，窗口间距为8 mm的窗口结构的90％在0.32–6.4 GHz范围内具有最低的串扰，约为30.22 dB。另外，应避免将窗口放置在两端均为剩余长度一半的参考平面中，因为这会增加串扰和插入损耗。 ©2013 Wiley Periodicals，Inc. Int J RF和Microwave CAE 24：217–222，2014年。

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