Improvements in or relating to Ultra Broad-Band Delay Lines

摘要

1188492 Delay lines; super-conducting coaxial cables; super-conductors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Jan 1969 [20 Jan 1968] 2945/69 Headings H1A and A4D A helium-cooled coaxial delay line comprises an inner conductor made from a super-conducting . metal (e.g. niobium) and an outer conductor made of a metal which does not go into a super-conducting state (e.g. copper). The conductors may be insulated from each other by P.T.F.E. It is stated that the use of a non-super-conductor for the outer conductor reduces the Q of the line and smoothes the frequency response of the line in the 5 gHz region.