| 主权项 |
1. A dual-polarized antenna comprising:
a first ground conductor having an opening; a metal patch as a radiation element positioned equal to or lower in level in a lamination direction than the first ground conductor, the metal patch being positioned in the opening of the first ground conductor in view of a direction vertical to a surface of the first ground conductor; a first feed probe positioned under the first ground conductor in the lamination direction, the first feed probe that excites the metal patch; a second ground conductor positioned below the first feed probe in the lamination direction, the second ground conductor having a slot which is generally parallel to the first feed probe, the slot being positioned under the metal patch in the lamination direction; and a second feed probe disposed under the second ground conductor in the lamination direction, the second feed probe being generally perpendicular to the slot, wherein the metal patch has an aspect ratio which is smaller than a frequency ratio of a first frequency to a second frequency where the second frequency is lower than the first frequency, the first frequency is of a first polarized wave that the metal patch receives and transmits upon power feed from the first feed probe, and the second frequency is of a second polarized wave that the metal patch receives and transmits upon power feed from the second feed probe through the slot. |
