Communications: radio wave antennas – Antennas – Switching between antennas and lines
Reexamination Certificate
2005-09-02
2010-10-05
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Switching between antennas and lines
C343S7000MS, C343S702000
Reexamination Certificate
active
07808445
ABSTRACT:
The present invention relates to a portable radio communication device operable in at least a first and a second frequency band, the antenna device comprises a first electrically conductive radiating element comprises a first feeding portion connectable to a feed device (RF) of the radio communication device for feeding and receiving radio frequency signals, a ground plane provided at a distance from the first radiating element, a DC-blocking device connecting the first electrically conductive radiating element and the ground plane at a first position, and a controllable switch connecting the first electrically conductive radiating element and the ground plane at a second position.
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Harness & Dickey & Pierce P.L.C.
Ho Tan
Laird Technologies AB
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