Antenna and method for steering antenna beam direction for WiFi applications
First Claim
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1. A WiFi multi-mode antenna assembly, comprising:
- a substrate;
a ground plane including a volume of conductor disposed on the substrate;
an antenna radiating element positioned on the substrate adjacent to the ground plane forming an antenna volume disposed between the antenna radiating element and the ground plane;
a parasitic element positioned on the substrate adjacent to the radiating element and outside of the antenna volume;
an active component disposed on the substrate between the parasitic element and the ground plane, wherein the active component is configured to vary a current flow through the parasitic element, andan active module configured to vary a ground connection associated with the parasitic element;
wherein the antenna assembly is tuned to radiate at one or more resonant frequencies, said resonant frequencies including;
2.4 GHz, 5 GHz, or a combination thereof.
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Abstract
An antenna comprising an IMD element and one or more parasitic and active tuning elements is disclosed. The IMD element, when used in combination with the active tuning and parasitic elements, allows antenna operation at multiple resonant frequencies. In addition, the direction of antenna radiation pattern may be arbitrarily rotated in accordance with the parasitic and active tuning elements. Unique antenna architectures for beam steering in Wi-Fi band applications is further described.
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Citations
16 Claims
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1. A WiFi multi-mode antenna assembly, comprising:
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a substrate; a ground plane including a volume of conductor disposed on the substrate; an antenna radiating element positioned on the substrate adjacent to the ground plane forming an antenna volume disposed between the antenna radiating element and the ground plane; a parasitic element positioned on the substrate adjacent to the radiating element and outside of the antenna volume; an active component disposed on the substrate between the parasitic element and the ground plane, wherein the active component is configured to vary a current flow through the parasitic element, and an active module configured to vary a ground connection associated with the parasitic element; wherein the antenna assembly is tuned to radiate at one or more resonant frequencies, said resonant frequencies including;
2.4 GHz, 5 GHz, or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification