TY - GEN
T1 - A study on transmission characteristics and shielding effectiveness of shielded-flexible printed circuits for differential-signaling
AU - Kayano, Yoshiki
AU - Inoue, Hiroshi
PY - 2015/9/10
Y1 - 2015/9/10
N2 - To provide basic considerations for the realization of method for suppressing the EMI from differential-paired lines on flexible printed circuits (FPC), the characteristics of the SI performance and shielding effectiveness (SE) of shielded-flexible printed circuits for differential-signaling are investigated in this paper experimentally and by a numerical modeling. Firstly, transmission characteristics of TDR measurement and frequency response of Sdd21 are discussed, from view point of signal integrity. Secondly, as the characteristics of the SE performance for EMI, frequency responses of magnetic field are investigated. Although placement of conductive shield near the paired-lines decreases characteristics impedance, Sdd21 for the 'with Cu 5.5um-thickness copper shield' is not deteriorated compared with 'without shield' and sufficient SE performance for magnetic fields can be established. But, thin-shield deteriorates SI as well as SE performances.
AB - To provide basic considerations for the realization of method for suppressing the EMI from differential-paired lines on flexible printed circuits (FPC), the characteristics of the SI performance and shielding effectiveness (SE) of shielded-flexible printed circuits for differential-signaling are investigated in this paper experimentally and by a numerical modeling. Firstly, transmission characteristics of TDR measurement and frequency response of Sdd21 are discussed, from view point of signal integrity. Secondly, as the characteristics of the SE performance for EMI, frequency responses of magnetic field are investigated. Although placement of conductive shield near the paired-lines decreases characteristics impedance, Sdd21 for the 'with Cu 5.5um-thickness copper shield' is not deteriorated compared with 'without shield' and sufficient SE performance for magnetic fields can be established. But, thin-shield deteriorates SI as well as SE performances.
KW - Differential-signaling
KW - common-mode
KW - differential-mode
KW - electromagnetic shield
KW - flexible printed circuits
UR - http://www.scopus.com/inward/record.url?scp=84953858644&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84953858644&partnerID=8YFLogxK
U2 - 10.1109/ISEMC.2015.7256136
DO - 10.1109/ISEMC.2015.7256136
M3 - Conference contribution
AN - SCOPUS:84953858644
T3 - IEEE International Symposium on Electromagnetic Compatibility
SP - 80
EP - 85
BT - 2015 IEEE International Symposium on Electromagnetic Compatibility, EMC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Symposium on Electromagnetic Compatibility, EMC 2015
Y2 - 16 August 2015 through 22 August 2015
ER -