Radio device having antenna arrangement suited for operating...

Details Radio device having antenna arrangement suited for operating... Radio device having antenna arrangement suited for operating...

2011-08-02

2011-08-02

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S876000, C343S893000

Reexamination Certificate

active

07990319

ABSTRACT:
This radio device operating over a plurality of bands comprises a casing having a front cover and a back cover, an antenna arrangement, a radio frequency circuit set and a matching unit for connecting the antenna arrangement to the radio frequency circuit set. The following measures are proposed: —the antenna arrangement is formed by at least two antenna parts, each of which being related to a set of bands, —the antenna parts are placed close together, —the arrangement comprises a part that is normal to the front cover and another one that is near the back cover and feeding points, —the matching unit comprises control switching means for tuning the arrangement to each band. Thanks to these measures, the coverage of the band is obtained with satisfactory performance.

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