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Antenna integral with printed circuit board

  • US 5,949,385 A
  • Filed: 02/12/1997
  • Issued: 09/07/1999
  • Est. Priority Date: 02/16/1996
  • Status: Expired due to Term
First Claim
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1. An antenna comprising:

  • a base comprising at least one printed circuit board having a surface;

    at least one radiation conductor disposed spirally on the surface of the base;

    at least one power feeding terminal provided on a portion of the surface of said base for applying voltage to the radiation conductor, the radiation conductor having one end coupled to the power feeding terminal and a second end left unconnected; and

    said base comprising a plurality of layers laminated on top of each other thereby forming stacked layers, each layer having a layer surface, the stacked layers establishing a direction of the stacked layers normal to the layer surface of each of the stacked layers, the radiation conductor disposed spirally on the surface of the base having a spiral axis extending perpendicular to the direction of the stacked layers.

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