SMALL CELL ANTENNAS SUITABLE FOR MIMO OPERATION
First Claim
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1. A base station antenna, comprising:
- a first set of radiating elements that are configured to generate a first antenna beam that covers a first sector in an azimuth plane and a third sector in the azimuth plane;
a second set of radiating elements that are configured to generate a second antenna beam that covers a second sector in the azimuth plane and a fourth sector in the azimuth plane;
a third set of radiating elements that are configured to generate a third antenna beam that covers a fifth sector in an azimuth plane and a seventh sector in the azimuth plane; and
a fourth set of radiating elements that are configured to generate a fourth antenna beam that covers a sixth sector in the azimuth plane and an eighth sector in the azimuth plane,wherein the second sector is between the first sector and the third sector,wherein the fourth sector is between the first sector and the third sector and opposite the second sector,wherein the sixth sector is between the fifth sector and the seventh sector, andwherein the eight sector is between the fifth sector and the seventh sector and opposite the sixth sector.
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Abstract
A base station antenna includes a first set of radiating elements that are configured to generate a first antenna beam that has a first peanut-shaped antenna pattern in an azimuth plane and a second set of radiating elements that are configured to generate a second antenna beam that has a second peanut-shaped antenna pattern in the azimuth plane. A longitudinal axis of the first peanut-shaped antenna pattern in the azimuth plane is rotated approximately ninety degrees from a longitudinal axis of the second peanut-shaped antenna pattern in the azimuth plane.
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Citations
18 Claims
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1. A base station antenna, comprising:
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a first set of radiating elements that are configured to generate a first antenna beam that covers a first sector in an azimuth plane and a third sector in the azimuth plane; a second set of radiating elements that are configured to generate a second antenna beam that covers a second sector in the azimuth plane and a fourth sector in the azimuth plane; a third set of radiating elements that are configured to generate a third antenna beam that covers a fifth sector in an azimuth plane and a seventh sector in the azimuth plane; and a fourth set of radiating elements that are configured to generate a fourth antenna beam that covers a sixth sector in the azimuth plane and an eighth sector in the azimuth plane, wherein the second sector is between the first sector and the third sector, wherein the fourth sector is between the first sector and the third sector and opposite the second sector, wherein the sixth sector is between the fifth sector and the seventh sector, and wherein the eight sector is between the fifth sector and the seventh sector and opposite the sixth sector. - View Dependent Claims (5, 6, 7, 8)
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2. The base station antenna of claim 2, wherein the first set of radiating elements comprises:
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a first subset of radiating elements that are arranged as a first linear array of radiating elements; and a third subset of radiating elements that are arranged as a third linear array of radiating elements, wherein the third linear array of radiating elements is mounted opposite the first linear array of radiating elements. - View Dependent Claims (3, 4, 9)
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10. A base station antenna, comprising:
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a first array of radiating elements that are mounted to extend outwardly from a first backplane; a second array of radiating elements that are mounted to extend outwardly from a second backplane; a third array of radiating elements that are mounted to extend outwardly from a third backplane, the third backplane being generally opposite the first backplane; a fourth array of radiating elements that are mounted to extend outwardly from a fourth backplane, the second backplane being generally opposite the fourth backplane; a fifth array that includes at least one radiating element that is mounted to extend outwardly from the first backplane; a sixth array that includes at least one radiating element that is mounted to extend outwardly from the third backplane; a first feed network that is coupled to the first and third arrays; a second feed network that is coupled to the second and fourth arrays; and a third feed network that is coupled to the fifth and sixth arrays, wherein the radiating elements in the first through fourth arrays are configured to operate in a first frequency band and the radiating elements in the fifth and sixth arrays are configured to operate in a second frequency band that is at lower frequencies than the first frequency band. - View Dependent Claims (11, 12, 13, 14)
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15. A base station antenna, comprising:
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first through eighth arrays of radiating elements, the radiating elements of the first through eighth arrays mounted to extend outwardly from respective first through eighth backplanes; a first feed network that is coupled to the first and third arrays; a second feed network that is coupled to the second and fourth arrays; and a third feed network that is coupled to the fifth and sixth arrays, wherein the first through eighth arrays of radiating elements are configured to generate two pairs of antenna beams that each have a peanut-shaped cross-section in an azimuth plane at each of two polarizations. - View Dependent Claims (16, 17, 18)
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Specification