传输线理论Data Transmission Lines and Their Characteristics Data Transmission Lines and Their Characteristics Overview This application note discusses the general characteristics of transmission lines and their derivations. Here, using a transmission line model, the important parameters of characteristics impedance and propagation delay are developed in terms of their physical and electrical parameters. This application note is a revised reprint of section two of the Fairchild Line Driver and Receiver Handbook. This application note, the first of a three part series (see AN-807 and AN-808), covers the following topics: Transmission Line Model Input Impedance of a Transmission Line Phase Shift and Propagation Velocity for the Transmission Line Summary ― Characteristics Impedance and Propagation ……