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Author Nishiyama, N. ♦ Soga, Y. ♦ Contreras, J.T. ♦ Wallash, A. ♦ Nakamura, S.
Sponsorship IEEE Magnetics Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1965
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Interference ♦ Suspensions ♦ Radio frequency ♦ RF signals ♦ Sensitivity ♦ Probes ♦ Immune system ♦ RF signal interference ♦ Front-end ♦ hard disk drive (HDD) ♦ interconnect ♦ radio-frequency (RF) immunity
Abstract Disk drives' high data rate frequencies now occupy the same radio-frequency (RF) signal frequency bands of wireless communication networks. RF signals invade into the disk enclosure (DE) through the hard disk drive's slots, which are created by the gap between the top cover and the base between screws. Poor immunity DE designs allow wireless RF signals to interfere with the low-amplitude read signal of the customer's data. It is important to find the invasion path of the RF signal interference, and to apply the countermeasure to improve RF immunity. To determine the best configurations for RF immunity from a slot to the read path, this paper compares the RF immunity among four kinds of signal-trace suspension configurations by two kinds of extrinsic RF coupling measurement methods. Analysis shows that proper ground routing of some signal return traces can significantly improve RF immunity, and electrostatic discharge protection.
Description Author affiliation :: HGST, Inc., San Jose, CA, USA
Author affiliation :: Yokohama ResearchLab., Hitachi, Fujisawa, Japan
Author affiliation :: HGST Japan, Ltd., Fujisawa, Japan
ISSN 00189464
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-07-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 49
Issue Number 7
Size (in Bytes) 643.17 kB
Page Count 4
Starting Page 3783
Ending Page 3786

Source: IEEE Xplore Digital Library