Chapter 4

Crosstalk in Three-Conductor Lines

Crosstalk is the inadvertent coupling of a signal on one transmission line onto an adjacent transmission line, thereby making possible interference in the modules that the adjacent line interconnects. In today's high-speed digital and high-frequency analog systems, this has become a critical design problem, preventing proper operation of those digital and analog systems. This is due to the electric fields img and magnetic fields img caused by the first line (the generator line) interacting with the second line (the receptor line), thereby inducing a voltage and a current in that line. The voltages induced at the ends of the receptor line are called the near-end and far-end crosstalk voltages, img and img, and can cause interference in the electronic devices that terminate the receptor line. In today's high-speed digital systems, crosstalk has become a very important factor in preventing them from working properly.

4.1 The Multiconductor Transmission-Line Equations

Figure 4.1 shows the general configuration of a three-conductor transmission line that we ...

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