An apparatus comprising: a multi-layer printed wiring board providing: a first ground member formed on at least one layer of the printed wiring board; a second ground member extending from the first ground member; and a third ground member , wherein the second ground member, in combination with the first ground member, has an electrical length configured to provide a resonant mode in the first ground member and the second ground member in a first frequency band, the second ground member comprising a feed point positioned adjacent an open end of the second ground member, the feed point being for an antenna which is configured to operate in the first frequency band, wherein, in use, the antenna and radio circuitry are interconnected via the printed wiring board, the antenna being coupled to the feed point and the feed point being coupled to the radio circuitry via a galvanic connection so that the feed point may receive signals in the first frequency band from the radio circuitry and/or provide signals in the first frequency band to the radio circuitry, and the third ground member having, in combination with at least the first ground member, an electrical length configured to provide a resonant mode in at least the first ground member and the third ground member in a further frequency band, different to the first frequency band, the third ground member comprising a further feed point positioned adjacent an open end of the third ground member, the further feed point being for a further antenna which is configured to operate in the further frequency band, the further feed point being configured to receive a signal in the further frequency band. a multi-layer printed wiring board providing: a first ground member formed on at least one layer of the printed wiring board; a second ground member extending from the first ground member; and a third ground member , a first ground member formed on at least one layer of the printed wiring board; a second ground member extending from the first ground member; and a third ground member , wherein the second ground member, in combination with the first ground member, has an electrical length configured to provide a resonant mode in the first ground member and the second ground member in a first frequency band, the second ground member comprising a feed point positioned adjacent an open end of the second ground member, the feed point being for an antenna which is configured to operate in the first frequency band, wherein, in use, the antenna and radio circuitry are interconnected via the printed wiring board, the antenna being coupled to the feed point and the feed point being coupled to the radio circuitry via a galvanic connection so that the feed point may receive signals in the first frequency band from the radio circuitry and/or provide signals in the first frequency band to the radio circuitry, and the third ground member having, in combination with at least the first ground member, an electrical length configured to provide a resonant mode in at least the first ground member and the third ground member in a further frequency band, different to the first frequency band, the third ground member comprising a further feed point positioned adjacent an open end of the third ground member, the further feed point being for a further antenna which is configured to operate in the further frequency band, the further feed point being configured to receive a signal in the further frequency band. <EOS>