To provide a circularly polarized wave exciting dipole antenna the configuration of the feeding system of which is simple, that is easily manufactured with high reliability and has an excellent characteristic.

Center dipole antenna elements (10), (20) having a feeding point in the middle are formed in the circularly polarized wave exciting dipole antenna formed by printing a thin film strip conductor on a dielectric board (13) in a prescribed pattern and 1st and 2nd side dipole antenna elements (11, 12), (21, 22) with a prescribed length are loaded in both sides of the elements (10), (20) at a right angle to the center dipole antenna elements (10), (20).