Bandwidth improvement of multilayer common mode filter by time domain method

In demand of high-speed differential data communication, the common mode filter is usually presented. The new common mode filter demonstrated in this paper is designed by edge-coupled differential pairs. By using double loops routing structure, the coupling inductance is increased. To achieve sufficient common mode noise suppression while introducing minimal signal insertion loss, the full-wave time domain EM simulator is applied.

[1]  A. Ciccomancini Scogna,et al.  Broadband signal integrity characterization of a high speed differential backplane pair , 2006, 2006 IEEE International Symposium on Electromagnetic Compatibility, 2006. EMC 2006..

[2]  L. L. Wai,et al.  Mixed-mode S-parameter characterization of differential structures , 2003, Proceedings of the 5th Electronics Packaging Technology Conference (EPTC 2003).

[3]  Ching-Chao Huang,et al.  Design and verification of differential transmission lines , 2001, IEEE 10th Topical Meeting on Electrical Performance of Electronic Packaging (Cat. No. 01TH8565).

[4]  W. Eisenstadt,et al.  Combined differential and common-mode scattering parameters: theory and simulation , 1995 .

[5]  S. Hsu,et al.  Low-Loss Differential Semicoaxial Interconnects in CMOS Process , 2006, IEEE Transactions on Microwave Theory and Techniques.

[6]  Lin-Kun Wu,et al.  Design of miniaturized common-mode filter by multi-layer low temperature co-fired ceramic , 2003 .

[7]  Christos Christopoulos,et al.  Introduction to Electromagnetic Compatibility , 2007 .

[8]  Melinda Piket-May,et al.  The impact of a nonideal return path on differential signal integrity , 2002 .

[9]  Y. Quéré,et al.  Interconnect mode conversion in high-speed VLSI circuits , 2004, International Symposium on Signals, Circuits and Systems. Proceedings, SCS 2003. (Cat. No.03EX720).

[10]  K. Yamashita,et al.  Interconnect scaling scenario using a chip level interconnect model , 2000 .

[11]  Lin-Kun Wu,et al.  Design of miniaturized common-mode filter by multilayer low-temperature co-fired ceramic , 2004, IEEE Transactions on Electromagnetic Compatibility.

[12]  C. Paul.  Introduction to Electromagnetic Compatibility: Paul/Introduction to Electromagnetic Compatibility, Second Edition , 2005 .

[13]  D. Pozar.  Microwave Engineering , 1990 .