An electronic device , comprising: a peripheral conductive housing member ; control circuitry ; and an antenna configured to be tuned by the control circuitry , wherein the antenna has an antenna ground and an inverted-F antenna resonating element comprising a first arm and a return path , the first arm is separated from the antenna ground by a gap , and the antenna has a first antenna feed (F1) coupled across the gap , the antenna having an additional inverted-F antenna resonating element with a second arm , the antenna further comprising conductive structures that are formed from an extended portion of the antenna ground and that include a first portion separated from the antenna ground by an opening , the return path being formed from a second portion of the conductive structures that couples the first portion to the antenna ground, the second arm being formed from the first portion , the first arm being formed from the peripheral conductive housing member , the return path being configured to serve as a return path for the additional inverted-F antenna resonating element , the antenna having a second antenna feed (F2) coupled across the opening , the first antenna feed (F1) comprising a first ground antenna feed terminal (96-1), and the second antenna feed (F2) comprising a second ground antenna feed terminal (96-2) that is different from the first ground antenna feed terminal (96-1), wherein the antenna ground , a portion of the inverted-F antenna resonating element , a portion of the additional inverted-F antenna resonating element and the conductive structures are formed in the same plane, characterised in that the return path is located between the first antenna feed (F1) and the second antenna feed (F2), and the first arm and the second arm start at the return path and extend from the return path in opposite directions. a peripheral conductive housing member ; control circuitry ; and an antenna configured to be tuned by the control circuitry , wherein the antenna has an antenna ground and an inverted-F antenna resonating element comprising a first arm and a return path , the first arm is separated from the antenna ground by a gap , and the antenna has a first antenna feed (F1) coupled across the gap , the antenna having an additional inverted-F antenna resonating element with a second arm , the antenna further comprising conductive structures that are formed from an extended portion of the antenna ground and that include a first portion separated from the antenna ground by an opening , the return path being formed from a second portion of the conductive structures that couples the first portion to the antenna ground, the second arm being formed from the first portion , the first arm being formed from the peripheral conductive housing member , the return path being configured to serve as a return path for the additional inverted-F antenna resonating element , the antenna having a second antenna feed (F2) coupled across the opening , the first antenna feed (F1) comprising a first ground antenna feed terminal (96-1), and the second antenna feed (F2) comprising a second ground antenna feed terminal (96-2) that is different from the first ground antenna feed terminal (96-1), wherein the antenna ground , a portion of the inverted-F antenna resonating element , a portion of the additional inverted-F antenna resonating element and the conductive structures are formed in the same plane, characterised in that the return path is located between the first antenna feed (F1) and the second antenna feed (F2), and the first arm and the second arm start at the return path and extend from the return path in opposite directions. <EOS>