Variation of the electrical length of coaxial transmission lines with temperature

摘要

In a system where a number of transmission lines are fed from a common source, the phase relationship at the far end of the lines is determined by the electrical length of the transmission lines. This length is a function of the physical length and the dielectric constant of the line. Any variation in the dielectric constant or the physical length of the transmission line will cause a change in the electrical length and result in changed phase relationship at the far end of the line.