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US 9,240,634 B2Granted
Antenna and method for steering antenna beam direction
AssigneeEthertronics, Inc.
InventorsSebastian Rowson, Laurent Desclos, Jeffrey Shamblin
Life of this patent
Estimating the term…
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.
Claims15
An antenna, comprising:
- a radiating element positioned above a ground plane forming an antenna volume therebetween;
- and
- at least one parasitic element positioned adjacent to the radiating element and outside of the antenna volume;
- the at least one parasitic elements being associated with an active tuning element;
- wherein the active tuning element is configured to control a current flow direction in the respective parasitic elements associated therewith.
2 more elements
An antenna, comprising:
- a radiating element positioned above a ground plane forming an antenna volume therebetween;
- and
- a first parasitic element positioned adjacent to the radiating element and outside of the antenna volume;
- the first parasitic element coupled to a switch, wherein the switch is further coupled to the ground plane and configured to selectively open or short the first parasitic element;
- a second parasitic element positioned adjacent to the radiating element and within the antenna volume;
- the second parasitic element coupled to an active tuning element, the active tuning element comprising one of:
- a voltage controlled tunable capacitor;
- voltage controlled tunable phase shifter;
- transistor;
- switch;
- or micro-electromechanical systems (MEMs) device;
- said antenna being configured for each of:
- radiation pattern steering by controlling the switch and a corresponding current flow through the first parasitic element positioned outside of the antenna volume;
- and
- frequency shifting by controlling a reactive load of the active tuning element and associated second parasitic element positioned within the antenna volume.
12 more elements
An antenna, comprising:
- a radiating element positioned above a ground plane forming an antenna volume therebetween;
- and
- a first parasitic element positioned adjacent to the radiating element and outside of the antenna volume;
- the first parasitic element coupled to a first switch, wherein the first switch is further coupled to the ground plane and configured to selectively open or short the first parasitic element;
- a second parasitic element positioned adjacent to the radiating element and within the antenna volume;
- the second parasitic element coupled to a second switch, wherein the second switch is further coupled to the ground plane and configured to selectively open or short the second parasitic element;
- said antenna being configured for each of:
- radiation pattern steering by controlling the switch and a corresponding current flow through the first parasitic element positioned outside of the antenna volume;
- and
- frequency shifting by controlling a reactive load of the active tuning element and associated second parasitic element positioned within the antenna volume.
7 more elements
Dependencies are inferred from the claim text.