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Multi-stage isolation sub-system for a remote antenna unit

  • US 10,103,802 B2
  • Filed: 08/17/2017
  • Issued: 10/16/2018
  • Est. Priority Date: 01/27/2014
  • Status: Active Grant
First Claim
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1. A multi-stage isolation sub-system, comprising:

  • a first stage device configured to generate a first cancellation signal for attenuating a downlink leakage signal received on an uplink channel, the first cancellation signal comprising an inverse signal characteristic as compared to the downlink leakage signal; and

    a second stage device communicatively coupled to the first stage device and configured to generate a second cancellation signal for attenuating residual downlink noise and downlink intermodulation products received on the uplink channel.

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