US 8,976,069 B2
Multilevel antennaeGeneral
US 8,976,069 B2
Multilevel antennae
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Tho G Phan
Art Unit:
2845 Electrical Circuits and Systems
Inventors:
Carles Puente Baliarda; Carmen Borja Borau; Jaume Anguera Pros; Jordi Soler Castany
Assignee:
FRACTUS, S.A.
Priority:
09/20/99
Filed:
01/02/13
Granted:
03/10/15
Expiration:
04/19/23
Abstract
An apparatus includes an internal, multiband antenna element concealed within a portable communication device. The antenna element operates in at least three frequency bands and includes geometric elements arranged to define empty spaces in the antenna element to provide at least three winding current paths through the antenna element which circumvent the empty spaces, the at least three winding current paths respectively corresponding to the at least three frequency bands to provide the antenna element with multi-band behavior, wherein each of two or more of the geometric elements is traversed by the at least three winding current paths. The apparatus further includes a ground plane, with the antenna element being electrically coupled to the ground plane. The geometric elements are arranged such that the antenna element does not comprise a group of single band antennas that respectively operate in the at least three frequency bands.
Cooperative Patent Classification (CPC)
H01H01Q9/0407H01Q