Abstract: The present invention relates to a coaxial cable having a flat portion, so that the cable can be used, for example, as a jumper cable that passes through a window sill or a door. Because the cable is flat, it can easily pass through a crack in the door or window without requiring holes to be dilled into the building structure. The flat portion of the cable contains a central conductor that is sequentially surrounded by a substantially flat dielectric, an outer conductor, and a jacket.