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Approaches for improved frequency reuse efficiency and interference avoidance for a multi-beam satellite communications network

  • US 10,530,467 B2
  • Filed: 07/16/2019
  • Issued: 01/07/2020
  • Est. Priority Date: 12/31/2016
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) communications transmitter system comprising:

  • at least one control processor;

    a plurality of switches; and

    a plurality of feedhorns associated with each switch; and

    wherein each switch is configured to receive a feed signal of a respective frequency bandwidth and, for each of the plurality of feedhorns associated with the switch, to output a transmission signal of the respective frequency bandwidth and of a respective polarization;

    wherein the at least one control processor is configured to control each switch to output the transmission signals for the plurality of feedhorns associated with the switch during each of a number of respective dwell times;

    wherein each of the plurality of feedhorns associated with a respective switch is configured to form and transmit a communications beam during each respective dwell time that the switch is outputting the transmission signal for the feedhorn, wherein each beam is formed based on the respective transmission signal and is transmitted to cover a respective geographic area on the surface of the Earth, and the beams of the plurality of feedhorns associated with each switch are configured to form a respective pattern of beams on the surface of the Earth, each beam being of the frequency bandwidth and the respective polarization; and

    wherein the at least one control processor is configured to control the number of dwell times during which each of the plurality of switches outputs the respective transmission signals, for the formation and transmission of the respective beam pattern by the associated feedhorns, to switch between different combinations of beam pattern transmissions over time in accordance with frequency/polarization reuse scheme based on the number of dwell times.

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