MULTILEVEL ANTENNAE
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Accused Products
Abstract
Antennae in which the corresponding radiative element contains at least one multilevel structure formed by a set of similar geometric elements (polygons or polyhedrons) electromagnetically coupled and grouped such that in the structure of the antenna can be identified each of the basic component elements. The design is such that it provides two important advantages: the antenna may operate simultaneously in several frequencies, and/or its size can be substantially reduced. Thus, a multiband radioelectric behaviour is achieved, that is, a similar behavior for different frequency bands.
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Citations
87 Claims
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1-39. -39. (canceled)
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40. A multi-band antenna comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure comprising a plurality of electromagnetically coupled geometric elements, said plurality of geometric elements including at least two portions, a first portion being associated with a first selected frequency band and a second portion being associated with a second selected frequency band, said second portion being located substantially within the first portion, said first and second portions defining empty spaces in an overall structure of the conductive radiating element to provide a circuitous current path within the first portion and within the second portion, and the current within said first portion providing said first selected frequency band with radio electric behavior substantially similar to the radio electric behavior of said second selected frequency band and the current within the second portion providing said second selected frequency band with radio electric behavior substantially similar to the radio electric behavior of said first selected frequency band. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A multi-band antenna, comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure including at least two levels of detail in its geometric structure, a first level of detail being formed by a plurality of electromagnetically coupled geometric elements, said geometric elements including a first group of the geometric elements associated with a first selected frequency band and a second group of the geometric elements associated with a second selected frequency band, at least some of the geometric elements comprising said first group being included within the geometric elements comprising said second group, a second level of detail being formed by an overall geometric shape of said multilevel structure, said overall geometric shape of said structure defining an edge rich perimeter, and said first group of the geometric elements and said second group of the geometric elements defining empty spaces in the overall geometric structure to provide a circuitous current path for a current associated with at least one of the first and second groups of the geometric elements, said current path associated with one of the first and second selected frequency bands of the structure and having a lower frequency than a structure not including said empty spaces.
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73. A multi-band antenna comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure including a plurality of electromagnetically coupled geometric elements, said geometric elements including at least two portions on said multilevel structure, a first portion associated with a first selected frequency band and a second portion associated with a second selected frequency band, wherein the majority of the geometric elements of said second portion are included within the geometric elements comprising said first portion, said first portion and said second portion defining empty spaces in an overall structure of the conductive radiating element to provide circuitous current paths within said first and second portions, a perimeter of the multilevel structure defining an edge rich periphery, and wherein the overall structure of said conductive radiating element has a smaller size than a circular, square, or triangular antenna whose perimeter can be circumscribed within the periphery of the overall structure and operates in at least one of the first and second selected frequency bands.
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74. A multi-band antenna comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure including a plurality of electromagnetically coupled geometric elements, said geometric elements including at least two portions, a first portion of the geometric elements associated with a first selected frequency band and a second portion of the geometric elements associated with a second selected frequency band, wherein said second portion is located substantially within the first portion, said first portion and said second portion defining empty spaces in an overall structure of the conductive radiating element to provide circuitous current paths within said first and second portions, a perimeter of the multilevel structure defining an edge rich periphery that increases the radiation resistance of the antenna in at least one of said selected frequency bands, and wherein the overall structure of said conductive radiating element has a smaller size than a circular, square, or triangular antenna whose perimeter can be circumscribed within the overall structure and which operates in at least one of the first and second selected frequency bands.
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75. (canceled)
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76. (canceled)
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77. (canceled)
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78. A multi-band antenna comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure including a plurality of electromagnetically coupled geometric elements, the plurality of geometric elements including at least a first portion and a second portion, wherein the said first portion is associated with a first selected frequency band, and the said second portion is associated with a second selected frequency band, said first portion and said second portion defining empty spaces in an overall structure of the conductive radiating element to provide a current path for a current in at least one of the first portion and the second portion, said current path being associated with one of said selected frequency bands and having a lower frequency of resonance than a radiating structure not including said empty spaces, and a perimeter of the multi-level structure defining an edge rich structure that enhances the radiation process of the antenna.
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79. A multi-band antenna, comprising:
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a conductive radiating element including at least one multilevel structure, said at least one multilevel structure including at least two levels of detail in its geometric structure, a first level of detail being formed by a plurality of geometric electromagnetically coupled geometric elements, said plurality of geometric elements including at least a first portion of geometric elements associated with a first selected frequency band, a second level of detail being formed by an overall geometric shape of the structure, said overall geometric shape being associated with a second selected frequency band, said overall geometric shape of the structure defining an edge rich perimeter that enhances the radiation process, said plurality of geometric elements defining empty spaces in the overall structure to provide a current path for a current associated with at least one of said portions of the plurality of geometric elements and the overall structure, and said current path being associated with one of said frequency bands of the antenna and having a lower frequency than a structure not including said empty spaces.
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80. (canceled)
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81. (canceled)
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82. (canceled)
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83. (canceled)
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84. (canceled)
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85. (canceled)
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86. (canceled)
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87. (canceled)
Specification