| CPC H04B 1/0078 (2013.01) [H04B 1/0483 (2013.01)] | 20 Claims |
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1. A switching circuit comprising:
a first coil;
a second coil electrically coupled to the first coil;
a first switch electrically connected to the second coil;
a third coil electrically coupled to the first coil;
a second switch electrically connected to the third coil; and
a controller configured to control opening or closing of the first switch and the second switch,
wherein the controller is configured to:
in order to establish a transmission path using the first coil and the second coil, close the first switch and open the second switch, and
in order to establish a reception path using the first coil and the third coil, open the first switch and close the second switch,
wherein, in case that the transmission path is established, a first signal is delivered from the second coil to the first coil based on a first mutual inductance, and
wherein, in case that the reception path is established, a second signal is delivered from the first coil to the third coil based on a second mutual inductance.
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