Non-Uniform Radar Antenna Layout for High Angle Resolution

The patent applies asymmetry by configuring the transmitting and receiving antennas with non-uniform spacing patterns. Specifically, the transmitting antennas are arranged with different separation distances (e.g., d1, d2, d3 where d1≠d2≠d3) and the receiving antennas similarly have asymmetric spacing. This asymmetric arrangement creates a unique antenna configuration that achieves high angle resolution equivalent to or better than uniform spaced arrays with more antennas, while maintaining a compact physical size. The asymmetric spacing optimizes the spatial sampling of the electromagnetic wavefront without requiring a large number of antennas.

The patent employs parameter changes by systematically varying the separation distances between adjacent antennas in the array. Instead of using uniform spacing, the invention specifies particular spacing parameters (e.g., ratios between consecutive spacings, absolute distance values) that optimize the angular resolution. By carefully selecting and adjusting these spacing parameters, the system achieves high resolution performance with a reduced number of antennas, thereby lowering overall device complexity while maintaining measurement precision.