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Flush-mounted antenna and transmission system

  • US 6,859,186 B2
  • Filed: 02/03/2003
  • Issued: 02/22/2005
  • Est. Priority Date: 02/03/2003
  • Status: Active Grant
First Claim
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1. An apparatus positioned beneath a surface, the apparatus comprising:

  • an antenna positioned substantially flush with the surface, the antenna capable of either receiving radiation or transmitting radiation when excited;

    a communication device coupled to the antenna; and

    a matching network coupled to the antenna and to the communication device, the matching network including a radial transmission line, the matching network including a can having a base and a sidewall, the base of the can and the sidewall of the can defining a cavity, the matching network further including a tuner element positioned within the cavity of the can.

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