Mitigating beam squint in millimeter wave wireless communication systems

An apparatus for managing beam squint, comprising:

• an antenna group, in communication with a transmitter and receiver;
• a frequency phase shifter in communication with each antenna in the antenna group, the phase shifter acting in concert in response to commands;
• a memory in communication with the antenna group;
• and
• a processor coupled to the memory and configured to:
• select antennas from the group of antennas based on a codebook stored in the memory, the codebook configured to perform carrier aggregations;
• and
• issue commands to the antenna group.

A non-transitory computer-readable medium comprising instructions stored thereon, which when performed by a processor, cause the processor to:

• determine a minimum array gain threshold;
• determine an upper bound for a fractional bandwidth for a fixed number of antennas;
• construct a codebook with a predetermined coverage range:
• based on at least one of an angle of arrival or an angle of departure and further based on the upper bound;
• perform carrier aggregation for the fixed number of antennas;
• and select at least two antennas based on the codebook.