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Double resonance antenna and antenna for portable radio

  • US 20040246186A1
  • Filed: 02/09/2004
  • Published: 12/09/2004
  • Est. Priority Date: 06/10/2002
  • Status: Active Grant
First Claim
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1. A multiple resonance antenna comprising:

  • an insulating antenna bobbin which has the pattern of an element that resonates in a plurality of frequency bands, formed on the outer circumferential surface; and

    a conductive parasitic conductor which is inserted into an accommodating hole formed substantially along the central axis of the antenna bobbin.

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