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Lens Antenna Array

Beamspace Lens MIMO

Electromagnetic refractive lenses placed over antenna arrays to naturally focus energy and reduce the required number of power-hungry RF chains.

Technical Explanation

At Sub-THz and millimeter-wave frequencies, equipping every single antenna element in a 1,024-element array with a dedicated RF transceiver chain is prohibitively expensive and power-hungry. A Lens Antenna Array places an electromagnetic refractive lens (such as a dielectric Luneburg lens) in front of the array. The lens physically focuses radio waves arriving from different spatial directions onto distinct localized antenna elements, transforming continuous space into discrete beamspace and slashing the required RF chains by 80-90%.

Key Functions

  • Electromagnetic lens physically focusing incoming waves onto discrete focal points
  • Reducing required RF transceivers by up to 90% without sacrificing spatial resolution
  • Substantial reduction in hardware cost, circuit complexity, and thermal dissipation
  • Near-instantaneous angle-of-arrival detection based on which feed element lights up
  • Ideal for Sub-THz base stations, high-capacity wireless backhaul, and satellite payloads
Specifications
IEEE Transactions on Antennas and Propagation, 6G Hardware Research Consortium
Interfaces
Lens-Feed-BusBeamspace-PHY

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