Patent ID: 8598983

Claim:
An electronic key comprising a transceiver comprising: a circuit board; a receiving antenna that is mounted to the circuit board and configured to receive a first electromagnetic wave in a first frequency band, wherein the receiving antenna includes: a supporter; a plurality of coil antennas each having a coil wound around the supporter, axis directions of the plurality of coil antennas being perpendicular to each other; a plurality of first terminals arranged on the supporter and connected with a wiring of the circuit board, the plurality of first terminals being respectively connected with the plurality of coil antennas; and two second terminals arranged on the supporter and connected with the wiring of the circuit board; and a transmitting antenna that is mounted to the receiving antenna and configured to transmit a second electromagnetic wave in a second frequency band, wherein the transmitting antenna includes: a horizontal part extending in a direction perpendicular to a thickness direction of the circuit board; and two vertical parts each extending in the thickness direction of the circuit board and including a first vertical part and a second vertical part, wherein one end of the first vertical part is connected with one of the two second terminals and another end of the first vertical part is connected with one end of the horizontal part, wherein one end of the second vertical part is connected with the other of the two second terminals and another end of the second vertical part is connected with another end of the horizontal part; the electronic key further comprising: a key plate, wherein: the receiving antenna further includes a case that receives the plurality of coil antennas and the supporter; the case has an outer surface including a first outer surface part and a second outer surface part; the key plate is provided to face the first outer surface part of the case; and the two second terminals and the transmitting antenna are mounted to the second outer surface part of the case.