| 摘要 |
PROBLEM TO BE SOLVED: To make the directional gain of all azimuth angles uniform in the same elevation angle while making the directional gain high at a high elevation angle of a patch antenna.SOLUTION: The patch antenna 11 has a patch antenna body 40 having an antenna electrode 43 on its top surface, and a waveguide 60 mounted on the top surface of the patch antenna body 40. The waveguide 60 is provided with a top plate 62 having a larger flat surface than the patch antenna body 40, and having an L-shaped slit 621 on the flat surface, and a spacer 61 which is arranged between the top surface of the patch antenna body 40 and the top plate 62, and separates by a predetermined distance between the antenna electrode 43 and the top plate 62. |
