Impedance Matching of Transmission Lines

In communications and electronic engineering, a transmission line is a specialized cable or other structure designed to carry alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. ↪️ In this example, when unmatched ~ as the simulation results show ~ the Transmission Line reflects the pulse between input and output with an attenuation corresponding to the values of Rin, RL, and Z0 ↪️ If the line were matched line where Rin = RL = Z0 ~ 50Ω for this example ~ The input pulse would be delayed by the Time Delay of the Transmission line. Commom termination techniques: Series (source) termination Parallel (end) termination Thevenin termination AC termination Reference: CTS application note AN1025 Onsemi application note AN610