POWER TRANSMITTING/RECEIVING ANTENNA AND POWER TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To provide a power transmitting/receiving antenna which can increase a power transmission efficiency and also can be made thin based on a resonance system.

SOLUTION: A power transmitting/receiving antenna 100 transmits/receives power between a power supply 13 and a battery 25 for receiving power from the power supply 13 in a non-contact manner. The antenna 100 includes a resonance antenna unit 40 which has a plate-like substrate 30 and a spiral pattern 43 which is made of a conductive material spirally formed on the substrate 30 along its surface direction and which is set at a predetermined resonance frequency; and a loop antenna unit 60 which has a loop pattern 63 made of a conductive material annularly formed along the surface direction and which is connected magnetically to the resonance antenna unit 40 and also connected electrically to the power supply 13 side or the battery 25 side. With such an arrangement, since an arrangement requiring power transmission based on a resonance system can be formed on the plate-like substrate 30, a power transmitting/receiving antenna of a resonance type can transmit power with a high efficiency and be made thin.

COPYRIGHT: (C)2011,JPO&INPIT