Near-Field Beam-Squint Precompensator

Technical Explanation

In wideband near-field communications, beam squint not only deflects the angular direction of the beam, but also shifts its 3D focal distance along the depth axis. The Near-Field Beam-Squint Precompensator applies frequency-dependent delay compensations across sub-carrier groups. By calculating exact phase curvature offsets across both frequency and space, it ensures all sub-carriers converge onto the exact identical 3D spatial coordinate simultaneously.

Key Functions

• Corrects 3D focal distance and angle drift across wideband near-field signals
• Prevents chromatic aberration dispersion in massive high-frequency antenna arrays
• Maximizes received energy density at the targeted user terminal coordinate
• Operates via low-complexity piecewise linear delay approximation algorithms