Category Archives: Featured Columns

Technical articles about SI design, measurement and analysis solutions

Download Your Copy of the PDN Resonance Calculator Spreadsheet

In the recently released book Larry Smith and I wrote, Principles of Power Integrity- Simplified, we offered a spreadsheet to go along with the book, especially the last chapter. You can download your copy of it by clicking here. We … Continue reading

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Principles of Power Integrity–Simplified, Released!

The latest textbook I wrote with colleague Larry Smith, Principles of Power Integrity- Simplified, has just hit the streets. You can pick it up directly from Prentice Hall at their InformIT web site. While the hard cover version is in … Continue reading

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Only an Engineer Will Understand the Knack

You’re an engineer if… You see a problem and your fingers itch to fix it. You see a finely working machine and you think about how you could make one even better. You have ever used a paperclip, a coat … Continue reading

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Words Matter in Engineering

I think a significant reason why some aspects of engineering are so confusing to many is because we get sloppy with the words we use. Changing our habits will make us all less confusing and increase the signal to noise … Continue reading

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Why do Microwave Ovens Operate at 2.45 GHz?

I get this question all the time when we discuss dielectric loss in my classes. The common answer I get back is that this is the frequency for the resonance of a water molecule. It would make it the ideal … Continue reading

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Really Cool Signal Chart For Download

Every signal integrity engineer should be bilingual- able to speak in both the time domain and the frequency domain. This applies to signals and to the electrical properties of interconnects. The basis of translating between the time domain and the … Continue reading

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My Rules for New Graduate Students

I am tired of telling my new graduate students the same things over and over again, so I wrote up the most important ones in a list, posted on the Signal Integrity Academy web site, for anyone to download. There … Continue reading

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More on the dB

I thought I’ve written a lot about the dB. But, I’ve met my match in this app note from Rhode Swartz on the dB. The dB is a unit used to describe the log of the ratio of two powers. … Continue reading

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Should Return Loss be Positive or Negative?

In the graduate signal integrity class I teach at the University of Colorado, Boulder, posted in full at the Signal Integrity Academy,  most of my students come in with an rf background. Every year, I get students that argue with … Continue reading

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Fundamental Myth-Conceptions: Test Yourself

It is remarkable that with all the high performance systems shipping today at 28 Gbps, in which very complicated electromagnetic effects play a dominant role, many engineers carry around miss-conceptions about the fundamental nature of how signals interact with interconnects. … Continue reading

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