Technical Webinar: Common Misconceptions about Inductance & Current Return Path

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What is the intended current return path? That is a common question for EMC engineer. Why current return path matters for controlling EMI?

Is the current return path always following the least inductance path in high frequency? These are the questions you may get answers from this technical webinar from Dr. Lam. 

  Date and Time




  • Date: 27 Apr 2023
  • Time: 04:00 PM to 05:00 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
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  • Starts 09 March 2023 04:00 AM
  • Ends 27 April 2023 04:00 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • No Admission Charge


Cheung-Wei Lam


Common Misconceptions about Inductance & Current Return Path

In today’s high-speed system design, a good understanding of inductance and current return path is important for signal integrity and EMI control. Unfortunately, several key concepts about the two have often been misunderstood or overlooked. This presentation will discuss the main concepts and some common misconceptions about inductance and current return path. Examples will be given at the chip and PCB levels.


Dr. Cheung-Wei Lam is a Distinguished Engineer and Chief EM Technologist at Apple. Prior to Apple, he was a co-founder at Transcendent Design Technology and a principal engineer at Quad Design Technology. Dr. Lam received B.S. from the Chinese University of Hong Kong, and S.M./Ph.D. from MIT. He currently serves as an IEEE EMC Society Respected Speaker and was a past IEEE EMC Society Distinguished Lecturer.