Intelligent antenna metamaterial method and apparatus
The present disclosure is a metamaterial-based object detection system. An intelligent antenna metamaterial interface (IAM) associates specific metamaterial unit cells into sub-arrays to adjust the beam width of a transmitted signal. The IAM is part of a sensor fusion system that coordinates a plurality of sensors, such as in a vehicle, to optimize performance. In one implementation, an MTM antenna structure is probe-fed to create a standing wave across the unit cells.
1. An antenna system, comprising:
an antenna structure comprising a plurality of cells and configured to radiate a first radio frequency beam with a first beam width to a surrounding environment using a first subset of the plurality of cells;
a controller coupled to the antenna structure and configured to control operational parameters of the antenna structure;
an object detection module coupled to the controller and configured to detect an object in the surrounding environment with the first subset of the plurality of cells, wherein the controller adjusts the first radio frequency beam into a second radio frequency_beam with a second beam width using a second subset of the plurality of cells different from the first subset based at least on the detected object; and
a beam direction module coupled to the object detection module and configured to radiate the second radio frequency beam with the second subset of the plurality of cells based at least on an instruction signal from the object detection module, wherein the beam direction module is configured to radiate the first radio frequency beam with a first beam width using the first subset of the plurality of cells and to radiate the second radio frequency beam with the second beam width using the second subset of the plurality of cells, wherein the first beam width is different from the second beam width.
2. The antenna system of claim 1 , wherein the beam direction module is configured to radiate the second radio frequency beam with the second subset of the plurality of cells in a direction that corresponds to a position of the detected object.
3. The antenna system of claim 1 , wherein the antenna system is adapted for a vehicular application.
4. The antenna system of claim 3 , wherein the vehicular application includes a sensor fusion module adapted to receive sensor information from multiple sensors, including from the antenna system, and determining an operational condition of a vehicle.
5. The antenna system of claim 3 , wherein the vehicle is an aerial vehicle.
6. The antenna system of claim 1 , wherein the antenna system is part of a radar module.
7. The antenna system of claim 6 , wherein the radar module operates on a continuous wave frequency modulated signal.