An apparatus comprising: a radiator having an electrical length; a first conductive element (15, 16, 18, 20, 22, 24, 38, 42, 66); an interconnector (32, 46), connected between the radiator and the first conductive element, having a first configuration and a second configuration, wherein the first conductive element is a component of the apparatus and is selected from the group consisting of a power source, a display, a user input device, an output device and a memory, printed wiring boards (PWBs), radio frequency shields, metal foils, flexible printed wiring boards (PWBs), covers, metallic coatings, conductive mechanically stiffening elements, metal frames surrounding other elements such as displays, cable assemblies, flexible interconnection lines, hinges, sockets, reactive components such as capacitors and inductors, and vibration mechanisms for vibrating the apparatus, the first conductive element being configured to provide a function in addition to changing the current distribution and electrical length of the radiator wherein the interconnector includes a switch (39, 52) for switching the interconnector between the first configuration and the second configuration, wherein the radiator includes a ground plane and the apparatus further comprises an antenna (28, 62) positioned for coupling with the ground plane, wherein the apparatus further comprises a second conductive element (44, 22), and when the interconnector is in the first configuration, the interconnector connects the ground plane to the first conductive element, and when the interconnector is in the second configuration, the interconnector connects the ground plane to the second conductive element, the apparatus comprising a third conductive element and a further interconnector connected to the first conductive element and to the third conductive element, the further interconnector has a first configuration and a second configuration, wherein, when the further interconnector is in the first configuration, the radiator has a first electrical length when the interconnector is in the first configuration and a second electrical length, different to the first electrical length, when the interconnector is in the second configuration, and wherein, when the further interconnector is in the second configuration, the radiator has a third electrical length when the interconnector is in the first configuration. a radiator having an electrical length; a first conductive element (15, 16, 18, 20, 22, 24, 38, 42, 66); an interconnector (32, 46), connected between the radiator and the first conductive element, having a first configuration and a second configuration, wherein the first conductive element is a component of the apparatus and is selected from the group consisting of a power source, a display, a user input device, an output device and a memory, printed wiring boards (PWBs), radio frequency shields, metal foils, flexible printed wiring boards (PWBs), covers, metallic coatings, conductive mechanically stiffening elements, metal frames surrounding other elements such as displays, cable assemblies, flexible interconnection lines, hinges, sockets, reactive components such as capacitors and inductors, and vibration mechanisms for vibrating the apparatus, the first conductive element being configured to provide a function in addition to changing the current distribution and electrical length of the radiator wherein the interconnector includes a switch (39, 52) for switching the interconnector between the first configuration and the second configuration, wherein the radiator includes a ground plane and the apparatus further comprises an antenna (28, 62) positioned for coupling with the ground plane, wherein the apparatus further comprises a second conductive element (44, 22), and when the interconnector is in the first configuration, the interconnector connects the ground plane to the first conductive element, and when the interconnector is in the second configuration, the interconnector connects the ground plane to the second conductive element, the apparatus comprising a third conductive element and a further interconnector connected to the first conductive element and to the third conductive element, the further interconnector has a first configuration and a second configuration, wherein, when the further interconnector is in the first configuration, the radiator has a first electrical length when the interconnector is in the first configuration and a second electrical length, different to the first electrical length, when the interconnector is in the second configuration, and wherein, when the further interconnector is in the second configuration, the radiator has a third electrical length when the interconnector is in the first configuration.