ANTENNA DEVICE

摘要

An antenna device includes: a plurality of loop metal wires that form loops out of metal wires and that are radially arranged around a center line; a power feeding portion (15) that feeds power to the loop metal wires or a power receiving portion (15) that receives power from the loop metal wires and that is provided on the center line; and a variable impedance element (14) that is inserted in each of the loop metal wires.