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US 12,057,640 B2Granted
Patch antenna array with improved radiation efficiency
AssigneeQUALCOMM Incorporated
InventorsAssaf Aviv, Taesik Yang, Mohammad Ali Tassoudji, Kevin Hsi-Huai Wang
Life of this patent
Estimating the term…
Abstract
An antenna assembly includes an array of patch antennas arranged above a rectangular ground plane. The patch antennas are arranged in a sequence beginning at a first end of the rectangular ground plane and continuing across a width of the rectangular ground plane to a second end. With regard to this sequence, a plurality of polarization feeds alternate between being adjacent a first corner to being adjacent a second corner of the patch antennas and/or a plurality of via walls alternate in orientation along portions of a first edge of the rectangular ground plane and along portions of a second edge of the rectangular ground plane.
Claims32
An antenna assembly, comprising:
- a substrate;
- a first metal layer adjacent a surface of the substrate and configured to form a rectangular ground plane having a first edge that extends across a width of the rectangular ground plane and a second edge that extends across the width of the rectangular ground plane;
- a second metal layer configured to form a first linear array of patch antennas spaced from the rectangular ground plane, the first linear array of patch antennas being configured to extend across a length substantially equal to the width of the rectangular ground plane, wherein the first metal layer is between the substrate and the second metal layer;
- a first feed coupled to a first portion of a first patch antenna in the first linear array of patch antennas, the first portion being spaced apart from a center of the first patch antenna towards the first edge;
- a first plurality of vias coupled to the first metal layer and configured to form a first via wall that extends only along a portion of the first edge that is adjacent the first patch antenna;
- a second feed coupled to a first portion of a second patch antenna in the first linear array of patch antennas, the first portion of the second patch antenna being spaced apart from a center of the second patch antenna towards the second edge;
- and
- a second plurality of vias coupled to the first metal layer and configured to form a second via wall that extends only along a portion of second edge that is adjacent the second patch antenna.
5 more elements
An antenna assembly, comprising:
- a rectangular ground plane having a first edge and a second edge that both extend across a width of the rectangular ground plane;
- a plurality of patch antennas above the rectangular ground plane, the plurality of patch antennas being configured into a linear array that extends across a length substantially equal to the width of the rectangular ground plane, each patch antenna in the plurality of patch antennas including a first portion closer to the first edge and a second portion closer to the second edge;
- a plurality of first feeds arranged in a sequence corresponding to the plurality of patch antennas, the plurality of first feeds being configured to alternate in orientation such that each subsequent first feed in the sequence is configured to couple to the second portion of a respective patch antenna responsive to a preceding first feed in the sequence being configured to couple to the first portion of a respective patch antenna and such that each subsequent first feed in the sequence is configured to couple to the first portion of its respective patch antenna responsive to the preceding first feed in the sequence being configured to couple to the second portion of its respective patch antenna;
- and
- a plurality of via walls coupled to the rectangular ground plane and arranged corresponding to the plurality of patch antennas, the plurality of via walls being configured to alternate in orientation such that each via wall is configured to extend only along a portion of the first edge adjacent a respective patch antenna responsive to the respective patch antenna's first feed being coupled to the respective patch antenna's first portion and such that each via wall is configured to extend only along a portion of the second edge adjacent the respective patch antenna responsive to the respective patch antenna's first feed being coupled to the respective patch antenna's second portion.
2 more elements
An antenna assembly, comprising:
- a ground plane having a first edge and a second edge that both extend across a width of the ground plane;
- a first rectangular patch antenna and a second rectangular patch antenna both being spaced apart from the ground plane by an antenna height;
- a plurality of parasitic patches disposed adjacent each of the first rectangular patch antenna and the second rectangular patch antenna, each rectangular patch antenna and it's corresponding plurality of parasitic patches being symmetric, disregarding any feed interfaces, with respect to an axis for the rectangular patch antenna extending from a first corner of the rectangular patch antenna to an opposing second corner of the rectangular patch antenna, wherein the axis is orthogonal to the first edge and to the second edge;
- a first feed coupled to a first portion of the first rectangular patch antenna that is spaced apart from a center of the first rectangular patch antenna towards the first rectangular patch antenna's first corner;
- a second feed coupled to a first portion of the second rectangular patch antenna that is spaced apart from a center of the second rectangular patch antenna towards the second rectangular patch antenna's second corner;
- a first plurality of vias coupled to the ground plane, each via of the first plurality of vias being configured to extend from the ground plane to substantially the antenna height, the first plurality of vias being configured to extend in a first line along the first edge of the ground plane, wherein the first line intersects two of the plurality of parasitic patches disposed adjacent the first rectangular patch antenna;
- and
- a second plurality of vias coupled to the ground plane, each via of the second plurality of vias being configured to extend from the ground plane to substantially the antenna height, the second plurality of vias being configured to extend in a second line along the second edge of the ground plane, wherein the second line intersects two of the plurality of parasitic patches disposed adjacent the second rectangular patch antenna.
5 more elements
Dependencies are inferred from the claim text.