The invention concerns a device (4) for Connecting a radio frequency circuit (3) or component printed on a flexible support (2) to a coaxial cable, comprising: -a first part (14) suitable for being disposed against a first face (5) of the support (2) on which the circuit or the component (3) is printed, the first part (14) comprising a recess capable of housing a coaxial cable connector (13), -a second part (15) capable of being disposed against a second face (6) of the support (2), opposite the first face, and in which the first part (14) and/or the second part (15) comprises attachment means for attaching the first part (14) and the second part (15) to each other, the flexible support (2) being clamped between the first part (14) and the second part (15), in such a way as to maintain an electrical contact between the connector (13) and the circuit or component (3).