Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands. In addition, the antenna comprises a variety of magnetic shielding materials that are positioned through the antenna structure. These magnetic materials are designed to help shape the magnetic fields being emitted by the respective inductor coils.