Multilevel antennae

US8941541B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8941541-B2
Application numberUS-201313732755-A
CountryUS
Kind codeB2
Filing dateJan 2, 2013
Priority dateSep 20, 1999
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

What is claimed is: 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 elem…

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What does patent US8941541B2 cover?
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 respectiv…
Who is the assignee on this patent?
Fractus Sa
What technology area does this patent fall under?
Primary CPC classification H01Q1/36. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).