Est. read time: 1 minute | Last updated: February 23, 2024 by John Gentile


Ideal Transmission Lines

Telegrapher’s Equations

The goal of the Telegrapher’s Equations is to express complex electric and magnetic field behavior of transmission lines with simple equivalent circuits.


  • When an ideal driver transmits a voltage into a high-impedance (open) receiver
    • Almost all signal is reflected back creating a 2x driven amplitude (i.e. a 2.5Vpp driver will see a 5Vpp signal amplitude into an open receiver) on the line and, in the ideal case, the signal oscillates back and forth indefinitely