| US 7,477,195 B2 | ||
| Multi-frequency band antenna device for radio communication terminal | ||
| Scott La Dell Vance, Staffanstorp (Sweden) | ||
| Assigned to Sony Ericsson Mobile Communications AB, Lund (Sweden) | ||
| Filed on Aug. 03, 2006, as Appl. No. 11/498,043. | ||
| Claims priority of provisional application 60/779427, filed on Mar. 07, 2006. | ||
| Prior Publication US 2007/0210969 A1, Sep. 13, 2007 | ||
| Int. Cl. H01Q 1/38 (2006.01) | ||
| U.S. Cl. 343—700MS [343/702] | 20 Claims |
| 1. A multi-band radio antenna device for a radio communication terminal, comprising:
a first radiating element;
a second radiating element; and
an integral feed and ground structure electrically connected to the first radiating antenna element and the second radiating
antenna element,
said first radiating antenna element comprising a first continuous trace of conductive material, the first continuous trace
comprising:
a first branch tuned to radiate at first frequencies in a first frequency band, and
a second branch tuned to radiate in a second frequency band at second frequencies approximately equal to or greater than two
times the first frequencies, and
said second radiating antenna element comprising a second continuous trace of conductive material, the second continuous trace
comprising a third branch capacitively coupled to said second branch, wherein said third branch is not capacitively coupled
to said first branch.
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