RF Interference Evaluation of Flexible Flat Cables for High-Speed Data Transmission in Mobile Devices

被引：0

作者：

Park, Hyun Ho ^{[1
]}

Kam, Dong Gun ^{[2
]}

Park, Young Bae ^{[2
]}

Kim, Jiseong ^{[3
]}

Lim, Jae-Deok ^{[4
]}

Park, Hark-Byeong ^{[4
]}

Song, Eakhwan ^{[5
]}

机构：

[1] Univ Suwon, Elect Engn, Hwaseong 445743, South Korea

[2] Ajou Univ, Elect Engn, Suwon 443749, South Korea

[3] Suwon Sci Colloge, Dept Elect, Hwaseong 445742, South Korea

[4] Samsung Elect Co Ltd, Global Technol Ctr, Suwon 443742, South Korea

[5] Kwangwoon Univ, Elect & Commun Engn, Seoul 139701, South Korea

来源：

2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits | 2015年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a radio-frequency interference (RFI) evaluation method for flexible flat cables (FFCs), which are commonly employed for high-speed signal transmission in modern mobile devices and become a major path of noise coupling to antennas. The noise coupled from differential-mode and common-mode signals flowing through FFCs is obtained in terms of transfer functions based on S-parameter measurement. Considering the source power from a driver IC on the main board sent to the FFCs, the noise power at the antenna was calculated to evaluate the noise coupling through the FFCs based on a criterion of RFI noise power received at an antenna port. To measure the coupled noise in terms of transfer function, a dedicated evaluation board is designed and fabricated. Several low-voltage differential signaling (LVDS) FFCs used in a real tablet were evaluated based on the proposed method and validated by experimental measurement on RFI noise power at Wi-Fi antenna port using both the evaluation board and the real tablet. A good correlation was achieved between them.

引用

页码：169 / 173

页数：5

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