Marko Marin, Technical Account Manager at Ansys, stopped by our booth at DesignCon to answer a few questions about signal integrity.
Controlled impedance printed circuit boards (PCBs) often include a measurement “coupon”, which typically includes sample traces, 6 inches long and constructed as part of the printed circuit board panel. They are measured to assure the PCB stack-up and the accuracy of the PCB transmission lines. These coupons, as well as the actual PCB signal traces, interconnects and cables are typically measured using a Time Domain Reflectometer (TDR). A TDR is generally a large, expensive instrument that includes a high-speed edge pulse and a sampling oscilloscope.
We met with Rick Hartley during PCB West 2018 to discuss signal integrity, controlled impedance and other PCB designers’ pain points. What can you do to improve your designs? Listen to the master!
Bill Hargin and Don DeGroot are “working on an every-man’s VNA” for measuring the properties of PCB materials with the help of Sierra. Learn more in Bill’s interview!
Daniel Beeker is one of the top experts in the field of EMC and signal integrity. We met him during PCB West 2018 and asked him about his design techniques.
This article covers in-depth the topic of losses in PCB transmission lines. We will talk about conductor loss, signal trace resistance, dielectric loss, loss tangent/dissipation factor of a dielectric, and total insertion loss.
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