Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-09-02
2010-10-05
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000, C343S846000
Reexamination Certificate
active
07808433
ABSTRACT:
The present invention comprises an antenna device for 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 having a feeding portion connectable to a feed device (RF) of the radio communication device for feeding and receiving radio frequency signals, a first ground plane portion arranged at a distance from the first radiating element, a second ground plane portion, and a controllable switch arranged between the first and second ground plane portion for selectively interconnecting or disconnecting the first and second ground plane portion.
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Rutfors Tomas
Von Arbin Axel
Harness & Dickey & Pierce P.L.C.
Ho Tan
Laird Technologies AB
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