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Dual distributed antenna system

  • US 5,533,011 A
  • Filed: 12/23/1994
  • Issued: 07/02/1996
  • Est. Priority Date: 12/07/1990
  • Status: Expired due to Term
First Claim
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1. In a digital communication signal distribution system coupled to a base station, an antenna system comprised of a series of nodes each node comprising:

  • a first directional coupler having two pass through ports and a coupling port, a first one of said pass through ports coupled to a first external bi-directional port of said node;

    a first antenna coupled to said coupling port of said directional coupler;

    a second directional coupler having two pass through ports and a coupling port, a first one of said pass through ports coupled to a second one of said pass through ports of said first directional coupler;

    a first delay device having two ports, a first one of said two ports coupled to said coupling port of said second directional coupler;

    a second antenna coupled to a second one of said two ports of said first delay device; and

    a second delay device having two ports, a first one of said two ports coupled to a second one of said two pass through ports of said second directional coupler and a second one of said two ports providing a second external bi-directional port of said node.

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