A coaxial cable-connector assembly includes: (a) a coaxial cable comprising an inner conductor, a dielectric layer circumferentially overlying the inner conductor, an outer conductor circumferentially overlying the inner conductor, and a polymeric jacket circumferentially overlying the outer conductor; (b) a connector adapter, comprising an inner contact that is electrically connected to the inner conductor, an outer sleeve that is in electrical contact with the outer conductor, and a dielectric spacer interposed between the inner contact and the outer sleeve, and (c) a coaxial connector having an outer connector body, the outer connector body having a mating end configured to mate with a mating connector and an adapter ring, the adapter ring configured to engage and electrically connect to the outer sleeve.