Portable wireless apparatus

Communications: radio wave antennas – Antennas – With radio cabinet

Reexamination Certificate

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Reexamination Certificate

active

07737897

ABSTRACT:
The present invention provides a folding type and portable wireless apparatus with a built-in antenna, particularly a portable wireless apparatus that reduces a local average SAR and improves performance of antenna.A housing open/close detecting unit6detects open/close of bodies1and2. When the bodies1and2are open, a first antenna4and a wireless circuit24are connected and resonant frequency of a second antenna5is adjusted into a first frequency bandwidth, and when the bodies1and2are closed, the resonant frequency of the second antenna5is adjusted into the first frequency bandwidth and a second frequency bandwidth and a wireless circuit24is connected. Therefore, when the bodies1and2are open, it is possible to reduce a local average SAR by separating an antenna current. Further, when the bodies1and2are closed, it is possible to obtain a high antenna gain.

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patent: 2004-274730 (2004-09-01), None

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