Invention Grant
- Patent Title: Multilevel antennae
- Patent Title (中): 多层天线
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Application No.: US13732755Application Date: 2013-01-02
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Publication No.: US08941541B2Publication Date: 2015-01-27
- Inventor: Carles Puente Baliarda , Carmen Borja Borau , Jaume Anguera Pros , Jordi Soler Castany
- Applicant: Fractus, S.A.
- Applicant Address: ES Barcelona
- Assignee: Fractus, S.A.
- Current Assignee: Fractus, S.A.
- Current Assignee Address: ES Barcelona
- Agency: Edell, Shapiro and Finnan LLC
- Main IPC: H01Q1/24
- IPC: H01Q1/24 ; H01Q1/50 ; H01Q1/36 ; H01Q1/38 ; H01Q5/00 ; H01Q9/04 ; H01Q9/06 ; H01Q9/28 ; H01Q9/40 ; H01Q5/01

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.
Public/Granted literature
- US20130194153A1 MULTILEVEL ANTENNAE Public/Granted day:2013-08-01
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