a circuit for communicating electrical signals and assembled at least in part by an automated assembly machine is disclosed . the automated assembly machine is operable to select from a plurality of components . the circuit includes a material having a first and second surface and a length . a strip conductor is positioned along the first surface of the material . a ground structure is disposed along the length of the second surface . finally , a low impedance device selected from the plurality of components is electrically coupled to the ground structure on opposite sides of the strip conductor , wherein the coupling of the low impedance device to the ground structure forms a circumferential shield around the strip conductor . various alternative embodiments , as well as fabrication methodology are also disclosed .