Dual-band glass-mounted antenna

  • US 6,215,451 B1
  • Filed: 11/17/1997
  • Issued: 04/10/2001
  • Est. Priority Date: 11/17/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An antenna device for use in conjunction with a dielectric material having a first surface and a second surface comprising:

  • a substantially planar first energy coupling means adapted for non-penetrating application to the first surface;

    said first energy coupling means comprising a first electrical energy connection port and first and second dissimilar planar transmission line segments, said first and second transmission line segments abutting one another, and extending in generally opposite directions from said connection port;

    a substantially planar second energy coupling means comprising a mirror image of the said first energy coupling means adapted for non-penetrating application to the second surface; and

    an antenna radiating element electrically connected to said second energy coupling means;

    whereby with said first energy coupling means placed against the first surface of the dielectric material, and the second energy coupling means placed against the second surface of the dielectric material, said first and second energy coupling means cooperate to couple electrical energy through the dielectric material between said first electrical energy connection port and said antenna radiating element, said antenna device being operable in at least two disparate frequency bands greater than 800 MHz, and separated by a ratio of approximately of 2;

    1.

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