The RF Immunity Characteristics Analysis of SSD Performance due to Wireless Communications Emission in Proximity
To facilitate the high speed data access/storage with vibrating and swaying proof, the Solid State Drive (SSD) is now commonly integrated with mobile or portable device like Ultrabook with its compact size. Besides RFI noise generated from such high speed digital de vice is observed imposing an inferior impact on RF wireless communications performance, it is also possible that the SSD storage module might be failed for data accessing caused by high level RF transmitted power from various transmitters of wireless communications systems. In addition, when WiFi tethering is used for cloud applications with the 3G/4G WWAN network through smart phone, the transmitted RF power from mobile phone might also affect the data access/storage of SSD memory. Because when we use WWAN network for Internet surfing, we would usually place the mobile phones by side of ultrabook/notebook computer with built-in SSD and thus the high level output signal from nearby mobile phone might cause memory map ping error of SSD. To analyze the EM immunity characteristics of SSD and related memory module, we will categorize the coupling mechanism of RF power between SSD and RF trans mitter into antenna coupling, circuitry coupling, and cavity resonance coupling. With the help of dedicated near-field RF signal generator and stripline 1 for closely located digital modules like SSD and flash memory in this study, we can identify the location and root cause of data accessing and storing degradation to benefit the manufacturers for proper SSD integration with mobile or portable device with compact design form limitation. We also evaluated the pass/fail EM immunity characteristics for SSD storage module, and hope to apply the IEC 63132 2 series IC-EMS measurement techniques on the component level to help solving the problem and further improve the integrating design to meet the EMC/performance requirement in the future study.
Han-Nien Lin Po-Yan Wang Hung-Yun Tsai Yung-Chi Tang
Department of Communications Engineering, Feng-Chia University No. 100 Wen-Hua Rd., Taichung 40724, Section of EMC, Bureau of Standards, Metrology and Inspection, M.O.E.A No. 4, Sec. 1, Jinan Rd., Zho
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
1151-1155
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）