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Array antennas having a plurality of directional beams

  • US 9,912,053 B2
  • Filed: 03/16/2015
  • Issued: 03/06/2018
  • Est. Priority Date: 03/17/2014
  • Status: Active Grant
First Claim
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1. A phased array antenna apparatus, the apparatus comprising:

  • an antenna housing enclosing a two-dimensional (2D) array of antenna emitters forming two or more vertical columns of emitting surfaces arrange in a flat plane within the antenna housing;

    a radio frequency (RF) transceiver and steering subsystem connected to the 2D array of antenna emitters, and configured to generate a plurality of RF signals that are phase shifted relatively to each other for beamforming of the plurality of RF signals emitted by the two dimensional array of antenna emitters, wherein the RF transceiver and steering subsystem comprises a radio device and a lacunated lens, wherein the lacunated lens has a body having at least two parallel plates separated by a dielectric material and multiple openings at least partially through the body of the lens, wherein the openings are arranged in the body so that an RF signal entering the body will exit from at a time delay corresponding to a predetermined steering angle that corresponds to where the RF signal entered the body; and

    two or more RF connectors on a back of the antenna housing, configured to connect the radio device to the two-dimensional array of antenna emitters.

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