A transmission line is any piece of wire connecting two components. Transmission lines have a CharacteristicImpedance measured by combining their unit length capacitace and unit length resistance. Thus, a Transmission Line has a CharacteristicImpedance irrespective of length. Common TransmissionLine types include:

  • Most Coaxial Cable (Aerials / 10base2 networks).
  • PCB Traces
  • Peripheral Connector Cables (SCSI / IDE Connectors)
  • National Power Grid

The CharacteristicImpedance of a TransmissionLine needs to be matched to the OutputImpedance? of the driver and the InputImpedance of the load.

See ImpedanceMatching for information on matching transmission lines.