5. Electromagnetics and Photonics

Transmission Lines — Quiz

Test your understanding of transmission lines with 5 practice questions.

Practice Questions

Question 1

An open-circuited lossless transmission line of length $\lambda/2$ is connected to a source. What impedance does the source see at the input of the line?

Question 2

An open‐circuited lossless transmission line of length $\lambda/4$ is connected to a source. What impedance does the source see at the input of the line?

Question 3

Which expression defines the Voltage Standing Wave Ratio (VSWR) on a transmission line?

Question 4

If a transmission line exhibits a VSWR of 3, what is the magnitude of the reflection coefficient $|\Gamma|$ at the load?

Question 5

What fraction of the incident power is reflected when the magnitude of the reflection coefficient is $|\Gamma|=0.4$?