If you find any of these videos of value, you will want to purchase this textbook to gain that fundamental understanding all engineers need to excel as designers.

Section 9.6: Time Domain Reflectometer (TDR) to measure impedance profile of interconnects

I introduce you to a simple, easy to use TDR to measure the instantaneous impedance profile of a few transmission lines.

Remember, all the details of the essential principles are described in the textbook.



Section 9.8: Electrically long & short interconnect transition QUCS file

Here, you can download a collection of QUCS files to play along at home with the TDR simulations and measurements.


Electrically long and short interconnects

In this video, I explain the difference between an electrically long and an electrically short interconnect based on it length and the rise time being used to probe the transmission line.



Spatial resolution simulation

In this video, I show what it means to describe the resolution of a TDR. What does it take to resolve two adjacent discontinuities?



Section 10.1: Demonstration measurement with TDR

In this experiment, we use a TDR to measure the impedance profile of a transmission line and interpret the results.



Section 11.6: Calculator to calculate dielectric constant and correction factor for microstrips

Here is a link to a simple online tool to calculate the characteristic impedance of a microstrip transmission line. It is an approximation.