Design of Low-loss Transmission Lines with Common Mode Suppression for Packages

2018-01-01
Increasing data rates of high speed serial interfaces forces the insertion loss and common mode (CM) noise requirements to be tighter. This paper addresses both of these challenges by introducing a new low-loss transmission line design with simultaneous common mode filtering property. The line is composed of periodical repetitions of narrow and wide sections, which generates a CM impedance contrast to filter out the CM noise, while differential impedance is kept constant by locally voiding the planes below and above the wide trace sections. As a result of the wider sections, the loss is also smaller.

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Citation Formats
A. C. Durgun, “Design of Low-loss Transmission Lines with Common Mode Suppression for Packages,” 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/69897.