HORIZONTAL MULTIPLE-INPUT MULTIPLE-OUTPUT WIRELESS ANTENNAS
First Claim
Patent Images
10. A multiple-input multiple-output (MIMO) antenna apparatus, comprising:
- a substrate defining a horizontal space within a housing;
a first plurality of antenna elements configured for selective coupling to a first radio and generating a first directional radiation pattern via a radio frequency feed port, the first plurality of antenna elements located on the substrate;
a second plurality of antenna elements configured for selective coupling to a second radio and generating a second directional radiation pattern via the radio frequency feed port, the second plurality of antenna elements located on the substrate;
one or more parasitic antenna elements located on the substrate; and
a coupling network, the coupling network including a control bus configured to receive a control signal for biasing one or more antenna selector elements, the antenna selector elements selectively coupling the first and second plurality of antenna elements to the radio frequency feed port.
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Abstract
High gain, multi-pattern multiple-input multiple-output (MIMO) antenna systems are disclosed. These systems provide for multiple-polarization and omnidirectional coverage using multiple radios, which may be tuned to the same frequency. The MIMO antenna systems may include multiple high-gain beams arranged (or capable of being arranged) to provide for omnidirectional coverage. These systems provide for increased data throughput and reduced interference without sacrificing the benefits related to size and manageability of an associated access point.
100 Citations
17 Claims
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10. A multiple-input multiple-output (MIMO) antenna apparatus, comprising:
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a substrate defining a horizontal space within a housing; a first plurality of antenna elements configured for selective coupling to a first radio and generating a first directional radiation pattern via a radio frequency feed port, the first plurality of antenna elements located on the substrate; a second plurality of antenna elements configured for selective coupling to a second radio and generating a second directional radiation pattern via the radio frequency feed port, the second plurality of antenna elements located on the substrate; one or more parasitic antenna elements located on the substrate; and a coupling network, the coupling network including a control bus configured to receive a control signal for biasing one or more antenna selector elements, the antenna selector elements selectively coupling the first and second plurality of antenna elements to the radio frequency feed port. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17)
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12-1. The MIMO antenna apparatus of claim 10, wherein the directional radiation pattern of the first radio and the directional radiation pattern of the second radio are opposite one another.
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13-2. The MIMO antenna apparatus of claim 10, wherein the directional radiation pattern of the first radio and the directional radiation pattern of the second radio partially overlap one another.
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14-3. The MIMO antenna apparatus of claim 10, wherein the directional radiation pattern of the first radio and the directional radiation pattern of the second radio form a substantially omnidirectional radiation pattern.
Specification