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Phased array communication system with remote RF transceiver and antenna beam control

  • US 10,629,989 B2
  • Filed: 10/19/2018
  • Issued: 04/21/2020
  • Est. Priority Date: 02/23/2018
  • Status: Expired due to Fees
First Claim
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1. A method for operating a phased array antenna system from a remote location, comprising:

  • at a radio hub location,generating an RF signal;

    modulating with the RF signal a continuous wave optical carrier to produce a transmit modulated optical carrier (TMOC);

    generating electronic control signal digital data which is configured to selectively control an antenna beam pattern of an array antenna;

    responsive to the electronic control signal digital data, modulating an optical carrier to generate a control signal modulated optical carrier (CSMOC) comprising digital data;

    coupling both the TMOC and CSMOC to a first optical fiber, whereby the TMOC and CSMOC are communicated to an antenna site which is remote from the radio hub location on a same optical fiber; and

    at the antenna site,processing the CSMOC to recover the electronic control signal digital data;

    using the TMOC to produce a plurality of transmit element level modulated RF (ELMRF) signals;

    using the electronic control signal data to selectively independently control a phase and an amplitude of each of the transmit ELMRF signals; and

    coupling the plurality of transmit ELMRF signals to a plurality of antenna elements of the array antenna.

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