Title
RF interference evaluation of flexible flat cables for high-speed data transmission in mobile devices
Abstract
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.
Year
DOI
Venue
2015
10.1109/EMCCompo.2015.7358351
2015 10th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)
Keywords
Field
DocType
RF interference evaluation,flexible flat cables,high-speed data transmission,mobile devices,noise coupling,common mode signals,differential mode signals,transfer functions,antenna port,dedicated evaluation board,low voltage differential signaling,LVDS,Wi-Fi antenna port
Differential signaling,Transmission (telecommunications),Noise power,Data transmission,Electromagnetic interference,Electronic engineering,Interference (wave propagation),Engineering,Antenna noise temperature,Electrical engineering,Integrated circuit
Conference
Citations 
PageRank 
References 
1
0.63
0
Authors
6
Name
Order
Citations
PageRank
Hyun Ho Park132.35
Dong Gun Kam2356.28
young bae park310.63
Jiseong Kim494.98
Jae-Deok Lim553.49
Eakhwan Song610.96