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Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption

  • US 8,971,792 B2
  • Filed: 02/07/2013
  • Issued: 03/03/2015
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
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1. A bi-directional RF signal amplifier, comprisingan RF input port;

  • a switching device having an input that is coupled to the RF input port, a first output and a second output;

    a diplexer having a common port, a high frequency port and a low frequency port, wherein the first output of the switching device is coupled to the common port; and

    an attenuator that has an attenuator input that is coupled to the second output of the switching device and an attenuator output that is directly connected to a node within the internal circuitry of the diplexer.

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