As for the dipole antenna, the supply of electricity section (10) from, the 1st emission element which on the one hand extends to the side in reference direction (101) with, the 2nd emission element which on the one hand extends to side (102) with, from the supply of electricity section, the 3rd emission element which on the other hand extends to side (103) with, the 4th emission element which on the other hand extends to side (104) with, it has, in addition to being identical with the electric length of the 1st emission element and the electric length of the 2nd emission element, electric length of the 3rd emission element and, electricity of the 4th emission elementThe mark it is identical with length. Furthermore, one which is driven the 1st emission element or by the 4th emission element or it has the plural non supply of electricity elements, electric length of the non supply of electricity element differs from the electric length of the dipole antenna which is formed the 1st emission element or by the 4th emission element.
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