Here’s a quick way to determine the bandwidth of a signal when all you know is the clock frequency. Remember: before you start using rules of thumb, be sure to read the Rule of Thumb #0: Use rules of ...

Spoiler summary: The quarter-wave stub resonant frequency, when built in FR4, is about: f[GHz] = 1.5/Len[inches] or f[GHz] = 3.8/Len[cm]. Remember: before you start using rules of thumb, be sure to ...