Phased antenna array with perforated and augmented antenna elements
View Patent ↗Systems, devices, and methods related to antenna elements with perforations and augmentations are provided. An example patch antenna structure includes a first conductive patch on a first layer of the structure, where the first conductive patch includes one or more perforations at a periphery of a first side of the first conductive patch, and one or more extended conductive portions at a second side of the first conductive patch, the second side opposite the first side; a ground plane on a ground layer of the structure, the ground layer spaced apart from the first layer; and a first signal feed to couple a signal to the first conductive patch. In an example, an individual extended conductive portion of the one or more extended conductive portions may compensate a radiation pattern associated with a corresponding one of the one or more perforations.
1. A patch antenna structure, comprising:
a first conductive patch on a first layer of the patch antenna structure, wherein the first conductive patch includes:
one or more perforations at a periphery of a first side of the first conductive patch, and
one or more extended conductive portions at a second side of the first conductive patch, the second side opposite the first side;
a ground plane on a ground layer of the patch antenna structure, the ground layer spaced apart from the first layer;
a first signal feed to couple a signal to the first conductive patch; and
a second signal feed to couple another signal to the first conductive patch, wherein the first signal feed is associated with a first polarization, and wherein the second signal feed is associated with a second polarization different from the first polarization.
2. The patch antenna structure of claim 1 , wherein each of the one or more perforations has a corresponding one of the one or more extended conductive portions.
3. The patch antenna structure of claim 1 , wherein a location of a first perforation of the one or more perforations is symmetrical to a location of a corresponding one of the one or more extended conductive portions at a center axis of the first conductive patch, the center axis extending from a third side to a fourth side of the first conductive patch, the third side is opposite the fourth side and adjacent to the first and second sides.
4. The patch antenna structure of claim 1 , wherein an area of a first extended conductive portion of the one or more extended conductive portions is based on an area of a corresponding one of the one or more perforations.
5. The patch antenna structure of claim 1 , wherein a first extended conductive portion of the one or more extended conductive portions compensates a radiation pattern associated with a corresponding one of the one or more perforations.
6. The patch antenna structure of claim 1 , further comprising:
a second conductive patch on a second layer of the patch antenna structure, the second layer between the first layer and the ground layer and spaced apart from the first layer by a dielectric material.
7. The patch antenna structure of claim 6 , wherein the first signal feed is electrically coupled to the first conductive patch and capacitively coupled to the second conductive patch.
8. The patch antenna structure of claim 6 , wherein the first signal feed is electrically coupled to the second conductive patch and capacitively coupled to the first conductive patch.
9. The patch antenna structure of claim 8 , wherein the first conductive patch and the second conductive patch are radiating elements, and wherein the patch antenna structure is configured to wirelessly transmit a radio frequency signal.
10. The patch antenna structure of claim 1 , further comprising a plurality of shielding vias, wherein:
the first signal feed comprises an excitation via;
the plurality of shielding vias surround the excitation via to provide isolation; and
a first perforation of the one or more perforations accommodates a first shielding via of the plurality of shielding vias.
11. The patch antenna structure of claim 1 , wherein a first perforation of the one or more perforations accommodates a shielding via and is proximate to the first signal feed.
12. A patch antenna structure, comprising:
a first conductive patch on a first layer of the patch antenna structure, wherein the first conductive patch includes:
one or more plated holes at a periphery of a first side of the first conductive patch, and
one or more cut-out regions at a second side of the first conductive patch, the second side opposite the first side;
a ground plane on a ground layer of the patch antenna structure, the ground layer spaced apart from the first layer;
a first signal feed to couple a signal to the first conductive patch; and
a second signal feed to couple another signal to the first conductive patch, wherein the first signal feed is associated with a first polarization, and wherein the second signal feed is associated with a second polarization different from the first polarization.
13. The patch antenna structure of claim 12 , wherein each of the one or more plated holes has a corresponding one of the one or more cut-out regions.
14. The patch antenna structure of claim 12 , wherein a location of a first cut-out region of the one or more cut-out regions is symmetrical to a location of a corresponding one of the one or more plated holes at a center axis of the first conductive patch, the center axis extending from a third side to a fourth side of the first conductive patch, the third side is opposite the fourth side and adjacent to the first and second sides.
15. The patch antenna structure of claim 12 , further comprising:
a second conductive patch on a second layer of the structure, the second layer between the first layer and the ground layer and spaced apart from the first layer by a dielectric material,
wherein the first signal feed is electrically coupled to one of the first conductive patch or the second conductive patch and capacitively coupled to the other one of the first conductive patch or the second conductive patch.
16. The patch antenna structure of claim 12 , further comprising a plurality of shielding vias, wherein:
the first signal feed comprises an excitation via;
the plurality of shielding vias surround the excitation via to provide isolation; and
a first plated hole of the one or more plated holes accommodates a first shielding via of the plurality of shielding vias.
17. The patch antenna structure of claim 12 , wherein a first plated hole of the one or more plated holes accommodates a shielding via and is proximate to the first signal feed.
18. An antenna array apparatus, comprising:
a plurality of antenna elements, wherein a first antenna element of the plurality of antenna elements comprises:
a first conductive patch including:
one or more perforations at a periphery of a first side of the first conductive patch, and
one or more extended conductive portions at a second side of the first conductive patch, the second side opposite the first side;
a ground plane vertically below the first conductive patch and spaced apart from the first conductive patch;
a first signal feed coupled to the first conductive patch; and
a second signal feed to couple another signal to the first conductive patch, wherein the first signal feed is associated with a first polarization, and wherein the second signal feed is associated with a second polarization different from the first polarization; and
beamformer circuitry coupled to one or more of the plurality of antenna elements, wherein the beamformer circuitry comprises a plurality of beamformer channels, wherein a first beamformed channel of the plurality of beamformer channels is coupled to the first signal feed.
19. The antenna array apparatus of claim 18 , wherein:
the first antenna element further comprises:
a second conductive patch between the first conductive patch and the ground plane and spaced apart from the first conductive patch by a dielectric material, and
the first signal feed is electrically coupled to one of the first conductive patch or the second conductive patch and capacitively coupled to the other one of the first conductive patch or the second conductive patch.
20. The antenna array apparatus of claim 18 , wherein the plurality of beamformer channels comprises a second beamformed channel, and wherein a plurality of shielding vias provide isolation between the first signal feed and another signal feed associated with the second beamformed channel.