| 摘要 |
A communication device is driven by wireless power derived from an electric power wave transmitted from an external wireless power feed device. A plurality of electric power wave reception antennas (101 and 133) are provided in the communication device. Electric power for a signal transmission antenna 111 is supplied from the first electric power wave reception antenna 101, while independently from that, electric power for a signal generation portion 120 is supplied by the second electric power wave reception antenna 133. As a result, the signal generation portion is stably driven, internal voltage drop does not occur, and malfunction is prevented. Moreover, a clock is regenerated from the second electric power wave reception antenna 133 so that a clock generation portion does not have to be provided. |
