Antenna Array Sub-Array Segmentation for Radar Resolution

The patent creates a universal antenna array structure that can serve multiple applications by combining sub-arrays with different aperture sizes in a single device. The same physical antenna array can be configured to function as a wide-field array, a high-resolution array, or a tapered array depending on which sub-arrays are activated. This multi-functionality eliminates the need to manufacture separate antenna designs for different applications, simplifying the manufacturing process while maintaining application-specific optimization.

The patent applies local quality by creating sub-arrays with different aperture characteristics within the overall linear array structure. Each sub-array (first, second, third, fourth) has a specific aperture size and can be independently controlled. This allows certain regions of the array to be optimized for specific functions (e.g., high resolution in certain directions, wide field of view in others) while maintaining the overall linear structure, thus preserving signal sensitivity without significantly increasing structural complexity.

The patent implements a nested sub-array configuration where smaller aperture sub-arrays (second and fourth sub-arrays) are positioned within or alongside larger aperture sub-arrays (first and third sub-arrays). This nested arrangement allows the system to achieve high resolution by activating only the necessary sub-arrays for a given application, rather than requiring the entire large aperture to be active at all times. The effective aperture can be dynamically adjusted by selecting which nested sub-arrays are active, thus achieving high resolution without permanently occupying the full device area.