CPC H02J 7/342 (2020.01) [H02J 50/10 (2016.02); H02J 50/23 (2016.02); H02J 50/40 (2016.02); H02J 50/80 (2016.02); H04W 4/80 (2018.02)] | 22 Claims |
1. A method of wirelessly charging a smartphone device, the method comprising:
providing a smartphone device having a smartphone antenna configured to receive power wirelessly;
providing a charging device having:
a battery having a front surface and a back surface,
a dual-mode antenna positioned in front of the front surface and closer to the front surface than the back surface, the dual-mode antenna configured to wirelessly transmit power and to wirelessly receive power,
a housing surrounding the battery and the first antenna, the housing having a front contact surface and a rear surface,
a coupling portion configured to couple the charging device with the smartphone device, the coupling portion being closer to the front contact surface than the rear surface,
wherein the antenna is closer to the contact surface than the rear surface;
charging the smartphone device by positioning the charging device relative to the smartphone device such that the antenna transmits power to the smartphone antenna.
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