ANTENNA DEVICE AND MANUFACTURING METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide an antenna device which enables easier manufacturing compared to conventional antenna devices, deals with mass production, and achieves low height design, and to provide a manufacturing method of the antenna device.SOLUTION: An antenna device 100 includes: an antenna element 10 formed on a dielectric substrate 20 as a dipole antenna element; a ground plate conductor 30 formed on a rear surface of the dielectric substrate 20; and a feed element 50 provided on the antenna element 10. The antenna element 10 has a central strip conductor 11 forming a coplanar line, outer strip conductors 12 and 13, and a strip line 14 formed adjacent to the coplanar line. The feed element 50 has an input/output terminal 51 connecting with the central strip conductor 11, an input/output terminal 53 connecting with a central conductor 41 of a coaxial feeder 40, and ground terminals 52 and 54 connecting with the strip line 14.