Area-Apportioned Wireless Power Antenna for Maximized Charging Volume

An antenna for wireless power transfer, the antenna comprising:

• a first antenna portion including
• a first antenna terminal,
• a second antenna terminal,
• at least one first inner turn, the at least one first inner turn having a first inner turn width,
• at least one first outer turn, the at least one first outer turn having a first outer turn width, the first outer turn width greater than the first inner turn width, and
• a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn, and
• a second antenna portion including
• a third antenna terminal,
• a fourth antenna terminal,
• at least one second inner turn, the at least one second inner turn having a second inner turn width,
• at least one second outer turn, the at least one second outer turn having a second outer turn width, the second outer turn width greater than the second inner turn width, and
• a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn,
• the second antenna terminal in electrical connection with the third antenna terminal, and
• the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.

A wireless power transfer system comprising

• a wireless transmission system including
• a transmitter circuit configured to generate a wireless power signal for transmission;
• and
• a transmitter antenna comprising a conductive wire, the conductive wire including
• a first antenna portion including
• a first antenna terminal,
• a second antenna terminal,
• at least one first inner turn, the at least one first inner turn having a first inner turn width,
• at least one first outer turn, the at least one first outer turn having a first outer turn width, the first outer turn width greater than the first inner turn width, and
• a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn, and
• a second antenna portion including
• a third antenna terminal,
• a fourth antenna terminal,
• at least one second inner turn, the at least one second inner turn having a second inner turn width,
• at least one second outer turn, the at least one second outer turn having a second outer turn width, the second outer turn width greater than the second inner turn width, and
• a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn,
• the second antenna terminal in electrical connection with the third antenna terminal, and
• the first antenna terminal and fourth antenna terminal in electrical connection with the transmitter circuit;
• and
• a wireless receiver system including
• a first receiver antenna configured to couple with the first antenna portion and receive the wireless power signal, and
• a second receiver antenna configured to couple with the second antenna portion and receive the wireless power signal.