WIRELESS POWER TRANSFER ANTENNA AND SYSTEM

An antenna for transmitting power in a wireless power transfer system comprises a first arm and a second arm. The first arm has a proximal end and a distal end extending helically about a first central axis. The second arm has a proximal end and a distal end extending helically about a second central axis toward the distal end of the first arm. A radius between the second arm and the second central axis increases in a distal direction away from the proximal end.