Small cell antennas suitable for MIMO operation
First Claim
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1. A base station antenna, comprising:
- a first linear array of radiating elements that are mounted to extend outwardly from a first backplane;
a second linear array of radiating elements that are mounted to extend outwardly from a second backplane;
a third linear array of radiating elements that are mounted to extend outwardly from a third backplane;
a fourth linear array of radiating elements that are mounted to extend outwardly from a fourth backplane;
a fifth linear array of radiating elements that are mounted to extend outwardly from a fifth backplane;
a sixth linear array of radiating elements that are mounted to extend outwardly from a sixth backplane;
a seventh linear array of radiating elements that are mounted to extend outwardly from a seventh backplane;
an eighth linear array of radiating elements that are mounted to extend outwardly from an eighth backplane;
a first feed network that is coupled to the first and third linear arrays of radiating elements;
a second feed network that is coupled to the second and fourth linear arrays of radiating elements;
a third feed network that is coupled to the fifth and seventh linear arrays of radiating elements; and
a fourth feed network that is coupled to the sixth and eighth linear arrays of radiating elements,wherein the first linear array of radiating elements is positioned generally opposite the third linear array of radiating elements, the second linear array of radiating elements is positioned generally opposite the fourth linear array of radiating elements, the fifth linear array of radiating elements is positioned generally opposite the seventh linear array of radiating elements, and the sixth linear array of radiating elements is positioned generally opposite the eighth linear array of radiating elements.
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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
19 Claims
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1. A base station antenna, comprising:
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a first linear array of radiating elements that are mounted to extend outwardly from a first backplane; a second linear array of radiating elements that are mounted to extend outwardly from a second backplane; a third linear array of radiating elements that are mounted to extend outwardly from a third backplane; a fourth linear array of radiating elements that are mounted to extend outwardly from a fourth backplane; a fifth linear array of radiating elements that are mounted to extend outwardly from a fifth backplane; a sixth linear array of radiating elements that are mounted to extend outwardly from a sixth backplane; a seventh linear array of radiating elements that are mounted to extend outwardly from a seventh backplane; an eighth linear array of radiating elements that are mounted to extend outwardly from an eighth backplane; a first feed network that is coupled to the first and third linear arrays of radiating elements; a second feed network that is coupled to the second and fourth linear arrays of radiating elements; a third feed network that is coupled to the fifth and seventh linear arrays of radiating elements; and a fourth feed network that is coupled to the sixth and eighth linear arrays of radiating elements, wherein the first linear array of radiating elements is positioned generally opposite the third linear array of radiating elements, the second linear array of radiating elements is positioned generally opposite the fourth linear array of radiating elements, the fifth linear array of radiating elements is positioned generally opposite the seventh linear array of radiating elements, and the sixth linear array of radiating elements is positioned generally opposite the eighth linear array of radiating elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A base station antenna comprising:
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first through fourth ports; and at least first through eighth linear arrays of radiating elements that are radially mounted on a tubular reflector assembly as four opposed pairs of linear arrays of radiating elements, wherein the first and third linear arrays are commonly fed via the first port, the second and fourth linear arrays are commonly fed via the second port, the fifth and seventh linear arrays are commonly fed via the third port, and the sixth and eighth linear arrays are commonly fed via the fourth port. - View Dependent Claims (11, 12, 13, 14, 15)
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16. 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 has a first peanut-shaped cross-section in an azimuth plane; a second set of radiating elements that are configured to generate a second antenna beam that has a second peanut-shaped cross-section in the azimuth plane; a third set of radiating elements that are configured to generate a third antenna beam that has a third peanut-shaped cross-section in the azimuth plane; and a fourth set of radiating elements that are configured to generate a fourth antenna beam that has a fourth peanut-shaped cross-section in the azimuth plane, wherein a longitudinal axis of the first antenna beam in the azimuth plane is rotated approximately ninety degrees from a longitudinal axis of the second antenna beam in the azimuth plane and a longitudinal axis of the third antenna beam in the azimuth plane is rotated approximately ninety degrees from a longitudinal axis of the fourth antenna beam in the azimuth plane, and the longitudinal axis of the third antenna beam in the azimuth plane is rotated approximately forty-five degrees from a longitudinal axis of the first antenna beam in the azimuth plane. - View Dependent Claims (17, 18, 19)
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Specification