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The OnTrack Podcast welcomes John Coonrod back to the show. John is Technical Marketing Manager at Rogers Corporation and a senior engineering professional with a rich background in PCB design, fabrication, processing, and modeling. John also has extensive experience with circuit materials, making him the ideal candidate for the topic of today’s podcast: insertion loss.


Watch the video, click here. 


Show Highlights

  • 01:45—Clarifying terms: a quick overview of Microstrips vs Striplines
  • 02:20—Exploring laminates, multilayered circuits, and plated through-holes 
  • 06:42—Applying electromagnetic fields: a prerequisite for understanding insertion loss 
  • 09:25—The four components of insertion loss
  • 13:10—RO4350B™; a friend to all fabricators?
  • 15:10—Pros and Cons of electroless nickel immersion gold (ENIG)
  • 18:13—John’s advice to design engineers on modeling for ENIG’s performance range
  • 21:33—Navigating the relationship between solder masks and insertion loss
  • 24:20—A call to viewers and listeners: Got a copper-related topic you’d like to hear John and Judy discuss? Submit your requests!



John Coonrod on Linkedin

Rogers Corporation Website (Advanced Connectivity Solutions)

Rogers Technology Hub 

(Includes Coonrod’s corner videos, data sheets, calculators and more)

Autonomous driving Resource Page (Guides, Videos and Material selection)

Rogers 5G Resource Page

Rogers ACS YouTube Channel  

ROG Mobile App (Resources accessible from your smartphone or tablet)

White Paper High Performance PCBs: Judy Warner, Chris Savalia, Michael Ingham


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