DUAL-POLARIZED ANTENNA
First Claim
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.
1 Assignment
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Accused Products
Abstract
A dual-polarized antenna includes a first ground conductor; and a metal patch conductive to the first ground conductor. The metal patch has a radiation surface which is uncovered by the first ground conductor. The antenna further includes a first feed probe coupled to the metal patch; a second ground conductor disposed in an opposite side to the first surface with reference to the first ground conductor. The second ground conductor has at least one of the empty space and the non-empty space of insulator. The antenna further includes a second feed probe spatially separated by the at least one space from the first feed probe. The second feed probe is coupled to the metal patch through the at least one space.
16 Citations
20 Claims
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1. A dual-polarized antenna comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dual-polarized antenna comprising:
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a first ground conductor; a metal patch; a first feed probe coupled to the metal patch; a second ground conductor disposed in an opposite side to the metal patch with reference to the first feed probe, the second ground conductor having at least one of an empty space and a non-empty space of insulator; and a second feed probe spatially separated by the at least one of the empty space and the non-empty space of insulator from the first feed probe, the second feed probe being coupled to the metal patch through at least one of the empty space and the non-empty space of insulator. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification