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Production of antenna devices

  • US 7,480,979 B2
  • Filed: 12/21/2001
  • Issued: 01/27/2009
  • Est. Priority Date: 12/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method of producing an antenna device for use in a portable radio communication apparatus, said method comprising the steps of:

  • providing a dielectric substrate having a first and a second surface opposite to each other;

    said first surface of said dielectric substrate being essentially non-planar;

    providing an ejecting apparatus that is adapted to form antenna patters on said dielectric substrate;

    ejecting a liqyid electrically conductive substance from said ejecting apparatus onto the first surface of said dielectric substrate, said ejecting apparatus having a container filled with said liquid conductive substance, an ejection opening in liquid communication with said container, and an implement for ejecting liquid conductive substance from said container through said opening; and

    moving said dielectric substrate and said ejection opening relative each other while ejecting said liquid conductive substance to thereby form, upon being solidified, a conductive antenna pattern on the first surface of said dielectric substrate.

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