Asymmetric Dual Bend Skew Compensation Technique for Reducing Differential to Common Mode Conversion
2021
Asymmetric dual bend skew compensation scheme is proposed in this paper, to reduce differential mode to common mode conversion in a system, thereby improving EMI performance of the system, at no additional cost and without reducing the SI performance. Three types of asymmetric dual bends are presented, and their EMI and SI performance is simulated in comparison with current skew compensation technique and an ideal layout. The results show that these Asymmetric dual bends can provide ~ 10dB improvement in Scd21 for frequencies till 20GHz for stripline routing and ~ 5dB for frequencies till 15GHz for microstrip routing.
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