Flexible cable and methods of manufacturing same

摘要

A flexible cable for carrying RF signals and method of manufacturing same. The cable (170) includes an elongate base substrate including a dielectric layer (176) with an upper metal layer (178) deposited on one side and a lower metal layer (174) deposited on its other side. It further includes two parallel spaced-apart series of vias (180) formed along the length of the base substrate, each via electrically interconnecting the upper metal layer and the lower metal layer, whereby a rectangular cross-sectional waveguide (190) is provided between the upper metal layer, the lower metal layer and the two series of vias.