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Low visibility radio antenna with dual polarization

  • US 5,977,931 A
  • Filed: 07/15/1997
  • Issued: 11/02/1999
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Term
First Claim
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1. A low-visibility, field-diverse monopole antenna for providing communications comprising:

  • an antenna-supporting core comprising printed circuit board (PCB) substrate and having a width and a length, said antenna-supporting core being generally thin and approximating a square, said PCB substrate conducting from one flat side to another via at least a portion of a plated-through hole; and

    an antenna, said antenna wrapped upon said core in a manner for a selected resonant frequency, said antenna radiating in a diverse manner with horizontal and vertical field components of a field radiated by said antenna substantially in phase and not circularly polarized;

    wherebythe low-visibility, field-diverse antenna is realized having helical antenna characteristics without severe circular polarization radiation thereby promoting reliable communications.

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