Patent ID: 8638262

Claim:
Apparatus comprising: an antenna connectable to a first feed terminal and to a second terminal and comprising a conductive track having a loop structure, a first conductive part and a second conductive part, the first conductive part being configured electrically in parallel with the second conductive part, the first conductive part being configured to have a first electrical length that provides a differential resonant mode having a first operational frequency band; and a ground member having a first end and a second end and comprising a first feed terminal at the first end and connectable to the antenna, and a second terminal at the first end and connectable to the antenna, wherein the first conductive part comprises a portion positioned in proximity to the first feed terminal and to the second terminal and configured to electromagnetically couple to the first feed terminal and to the second terminal, and wherein the second conductive part comprises a portion positioned in proximity to the first feed terminal and to the second terminal and configured to electromagnetically couple to the first feed terminal and to the second terminal.