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Multilevel antennae

  • US 9,761,934 B2
  • Filed: 04/25/2016
  • Issued: 09/12/2017
  • Est. Priority Date: 09/20/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • an internal antenna element having a multi-band behavior, the antenna element being concealed within the apparatus and configured to operate in at least first, second and third frequency bands, each of the at least first, second and third frequency bands extending between two limiting frequencies;

    the antenna element comprising a plurality of closed figures bounded by the same number of sides, wherein each of the closed figures is directly or proximately linked to at least one other of the closed figures such that electromagnetic power is exchanged between the closed figures either directly through at least one point of contact or through a small separation providing coupling;

    wherein, for at least most of the closed figures, a region or area of contact, intersection, or interconnection between the closed figures is less than 50% of their perimeter or area;

    wherein not all of the closed figures have the same size, and the perimeter of the antenna element has a different number of sides than the closed figures that compose the antenna element;

    the antenna element including at least first, second, and third portions, the first portion having a first geometry configured to operate at the first frequency band, the second portion being located substantially within the first portion and having a second geometry configured to operate at the second frequency band, and the third portion being located substantially within the first portion and having a third geometry configured to operate at the third frequency band, the first portion comprising substantially all of the antenna element; and

    wherein a geometry of the antenna element is not substantially self-repeating.

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