Coaxial transmission line having an expandable and contractible bellows

摘要

A rigid coaxial transmission line in which the inner conductor is formed by axially spaced sections. Adjacent sections are connected by a conductive bellows which permits thermal expansion and contraction of the inner conductor sections relative to one another and relative to the outer conductor of the transmission line. A rigid auxiliary connecting member is disposed within the bellows and is slidably connected to one of the conductor sections. The auxiliary connecting member limits expansion and contraction of the bellows to a safe range to prevent the bellows from being overstressed.