TY - GEN
T1 - Common mode conversion noise suppression using L-Pad with asymmetric coupled lines on bended differential lines
AU - Lee, Seungjin
AU - Lim, Jaehyuk
AU - Oh, Sangyeol
AU - Lee, Jaehoon
AU - Kim, Yonghoon
AU - Oh, Dan
N1 - Funding Information:
This work was supported by the institute of civil military technology cooperation under the Agency for defense development (18DB1400) and Samsung Electronics, Inc.
Funding Information:
ACKNOWLEDGMENT This work was supported by the institute of civil military technology cooperation under the Agency for defense development (18DB1400) and Samsung Electronics, Inc.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/6/22
Y1 - 2018/6/22
N2 - Right-angle bended differential lines using L-Pad with asymmetric coupled lines (ACL) are proposed to suppress the differential-to-common mode conversion. The L-pad with ACL not only suppresses the mode conversion noise effectively, but also has advantages on using in practical printed circuit board (PCB) layout because it does not occupies additional PCB areas. The simulated results show that differential-to-common mode noise conversion of proposed structure is maintained under -20 dB from DC to 4.98 GHz while conventional right-angle bended differential lines provides -20 dB suppression levels only up to 1.12 GHz. Also, Time Domain Transmission (TDT) common mode noise voltage is simulated and compared with other structures. The proposed design shows significant suppression of common mode noise with 42 mV, while other structures with compensation capacitance and with only L-pad show 118 mV and 88 mV respectively. Finally, measured results are compared with simulated results and show good agreements.
AB - Right-angle bended differential lines using L-Pad with asymmetric coupled lines (ACL) are proposed to suppress the differential-to-common mode conversion. The L-pad with ACL not only suppresses the mode conversion noise effectively, but also has advantages on using in practical printed circuit board (PCB) layout because it does not occupies additional PCB areas. The simulated results show that differential-to-common mode noise conversion of proposed structure is maintained under -20 dB from DC to 4.98 GHz while conventional right-angle bended differential lines provides -20 dB suppression levels only up to 1.12 GHz. Also, Time Domain Transmission (TDT) common mode noise voltage is simulated and compared with other structures. The proposed design shows significant suppression of common mode noise with 42 mV, while other structures with compensation capacitance and with only L-pad show 118 mV and 88 mV respectively. Finally, measured results are compared with simulated results and show good agreements.
KW - Bend discontinuity
KW - Common mode noise
KW - Differential signaling
KW - Differential-to-common mode noise conversion
KW - Electromagnetic compatibility
KW - L-pad
KW - Right-angle bended differential lines
UR - http://www.scopus.com/inward/record.url?scp=85050081984&partnerID=8YFLogxK
U2 - 10.1109/ISEMC.2018.8393981
DO - 10.1109/ISEMC.2018.8393981
M3 - Conference contribution
AN - SCOPUS:85050081984
T3 - 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018
SP - 1212
EP - 1215
BT - 2018 IEEE International Symposium on Electromagnetic Compatibility and 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 60th IEEE International Symposium on Electromagnetic Compatibility and 9th IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, EMC/APEMC 2018
Y2 - 14 May 2018 through 18 May 2018
ER -