Multilevel antennae
DCFirst Claim
1. An apparatus comprising:
- an antenna having a multi-band behavior, the antenna being concealed within a portable communication device and configured to operate in a plurality of non-overlapping frequency bands, the antenna comprising;
an antenna element including a multilevel structure, the multilevel structure comprising a plurality of geometric elements arranged to define empty spaces to provide a plurality of winding current paths through the antenna element which circumvent the empty spaces, the winding current paths respectively corresponding to the non-overlapping frequency bands to provide the antenna element with the multi-band behavior; and
a ground plane, the antenna element being electrically coupled to the ground plane;
wherein the antenna element provides a substantially similar impedance level and radiation pattern in the plurality of non-overlapping frequency bands;
wherein the geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the non-overlapping frequency bands; and
wherein the antenna element is not a fractal type antenna element.
1 Assignment
Litigations
1 Petition
Reexamination
Accused Products
Abstract
An apparatus includes an antenna concealed within a portable communication device and configured to operate in non-overlapping frequency bands. The antenna includes an antenna element with a multilevel structure of geometric elements arranged to define empty spaces to provide winding current paths through the antenna element which circumvent the empty spaces, the winding current paths respectively corresponding to the non-overlapping frequency bands. The antenna further includes a ground plane, with the antenna element being electrically coupled to the ground plane. The antenna element provides a substantially similar impedance level and radiation pattern in the non-overlapping frequency bands. The geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the non-overlapping frequency bands, and the antenna element is not a fractal type antenna element.
417 Citations
23 Claims
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1. An apparatus comprising:
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an antenna having a multi-band behavior, the antenna being concealed within a portable communication device and configured to operate in a plurality of non-overlapping frequency bands, the antenna comprising; an antenna element including a multilevel structure, the multilevel structure comprising a plurality of geometric elements arranged to define empty spaces to provide a plurality of winding current paths through the antenna element which circumvent the empty spaces, the winding current paths respectively corresponding to the non-overlapping frequency bands to provide the antenna element with the multi-band behavior; and a ground plane, the antenna element being electrically coupled to the ground plane; wherein the antenna element provides a substantially similar impedance level and radiation pattern in the plurality of non-overlapping frequency bands; wherein the geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the non-overlapping frequency bands; and wherein the antenna element is not a fractal type antenna element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multi-band antenna comprising:
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a ground plane; and a conductive radiating element electrically coupled to the ground plane and including at least one multilevel structure, said at least one multilevel structure comprising a plurality of electromagnetically coupled geometric elements, wherein a perimeter of the multilevel structure has more than five sides, said plurality of geometric elements including at least three portions, a first portion being associated with a first selected frequency band, a second portion being associated with a second selected frequency band and a third portion being associated with a third selected frequency band, at least substantial parts of said second and third portions being part of the first portion, said first, second and third portions defining empty spaces in an overall structure of the conductive radiating element to provide respective circuitous current paths within the first portion, within the second portion and within the third portion, a plurality of the circuitous current paths overlapping within a plurality of the geometric elements, 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 and third selected frequency bands, 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 and third selected frequency bands, and the current within the third portion providing said third selected frequency band with radio electric behavior substantially similar to the radio electric behavior of said first and second selected frequency bands, wherein the multi-band antenna is an internal antenna concealed within a portable communications device. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification