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Vertical-radiator antenna

  • US 3,199,108 A
  • Filed: 03/25/1963
  • Issued: 08/03/1965
  • Est. Priority Date: 03/25/1963
  • Status: Expired due to Term
First Claim
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2. A HELMET ANTENNA COMPRISING:

  • (A) A VERTICAL RADIATOR, AND (B) A GROUND-PLANE STRUCTURE AT THE BASE OF THE RADIATOR COMPRISING A PLURALITY OF HELICALLY COILED SPRING MEMBERS FREE FOR TENSION EXPANSION AND EXTENDING IN AN AT LEAST PARTIALLY RADIAL DIRECTION FROM THE BASE OF THE RADIATOR,

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