A loop antenna 1 includes: a first electrode terminal 2c; a second electrode terminal 2d arranged to make a pair with the first electrode terminal 2c; and a loop-shaped member 2 which has one end connected to the first electrode terminal 2c and the other end connected to the second electrode terminal 2d, is wound a plurality of times, and is made of a conductive material. The first electrode terminal 2c and the second electrode terminal 2d are arranged so as to make a pair with respect to a center line 3 of the loop-shaped member 2. Further, the loop-shaped member 2 includes a first loop-shaped member 2a, a second loop-shaped member 2b, and an intersection part 2e. The intersection part 2e is arranged on the center line 3 in a plan view, and the loop-shaped member 2 is continuously connected and formed to be symmetrical with respect to the center line 3.