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Beam Focusing

Depth-Domain Spatial Energy Concentration

The capability of large-aperture 6G antenna arrays to concentrate electromagnetic energy at a specific focal distance along a beam axis.

Technical Explanation

Unlike classical beam steering which radiates energy continuously along an angular trajectory toward infinity, Beam Focusing concentrates energy at a specific focal point along the beam path. Beyond the focal distance, the beam rapidly diverges. In 6G industrial networks, this enables high-density robotic communication where robots operating directly behind each other along the same line-of-sight can communicate on the same frequency without mutual interference.

Key Functions

  • Concentrating maximum signal power at a tunable radial focal distance
  • Rapid energy divergence beyond the focal zone minimizing inter-cell interference
  • Enabling depth-domain multiplexing for dense industrial robotic corridors
  • Physical layer wireless power transfer focused directly onto energy-harvesting IoT nodes
  • Sub-millimeter wireless power transmission with minimal radiation leakage
Specifications
IEEE Signal Processing Magazine, 6G Wireless Research Consortium
Interfaces
Focus-Ctrl6G-Uu

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