A PCB transmission line is a type of interconnection used for moving signals from their transmitters to their receivers on a printed circuits board. They are very complex to understand, which is why we created this quiz. Find out how much you know about PCB transmission lines!

Results Congratulations, you know a lot about PCB transmission lines! Why don’t you give us your feedback on our PCB Transmission Line eBook? It looks like you still have one thing or two to learn about PCB transmission lines! download our PCB Transmission Line eBook and take the quiz again. You will definitely pass this time! next #1. How many conductors does a PCB transmission line usually contain? One Two Three next #2. Name the conductors referred to in the last question. A signal trace and a ground plane. A signal trace and fiberglass. A signal trace and ceramic. next #3. What is the volume between the two conductors? A copper foil. A very high-loss dielectric. A very low-loss dielectric. next #4. Why do transmission lines need to have a controlled impedance at high frequencies? To avoid signal reflection. To avoid crosstalk. All of the above. next #5. Electromagnetic signals travel in vacuum or air at the same speed as of light. Why do signals travel on PCB transmission lines at a slower speed? Because they are affected by the dielectric constant of the PCB material. Because they are affected by electromagnetic interference. Because they need to go as slow as possible to avoid crosstalk. next #6. What does “tpd” refer to? Propagation dielectric Propagation delay Propagation density next #7. What is the propagation delay? It is the time taken by a signal to propagate over a unit length of the transmission line. It is the signal speed in vacuum or air, which equals 85 picoseconds/inch. It is the signal speed on striplines, which is half than in air. next #8. What is approximately the signal speed for Isola 370HR materials on a stripline? 1.8 inch/nanosecond 3.4 inch/nanosecond 5.9 inch/nanosecond next #9. What is approximately the propagation delay for Rogers 4000 series materials on a microstrip? 139 picoseconds/inch 128 picoseconds/inch 85 picoseconds/inch finish

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