Mobile radio apparatus with enhanced antenna characteristics

Details Mobile radio apparatus with enhanced antenna characteristics Mobile radio apparatus with enhanced antenna characteristics

2005-08-26

2010-11-09

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C455S090100

Reexamination Certificate

active

07830313

ABSTRACT:
A mobile radio apparatus using a circuit board in a cabinet as an antenna and being capable of providing a good antenna characteristic when the mobile radio apparatus is closed for entering a portable mode is provided. In a mobile radio apparatus, an upper circuit board is housed in an upper cabinet, a lower circuit board is housed in a lower cabinet, the upper and lower circuit boards and are electrically connected, an antenna section is housed in an upper part of the lower cabinet, a feeding section for supplying power to the antenna section is housed in the lower cabinet, and in a portable mode with the upper cabinet and the lower cabinet stacked on each other, the feeding section is connected to the antenna section and in a conversation mode in which the joint whole length is grown as the upper cabinet and the lower cabinet are changed in the mutual position, the feeding section is connected to the upper circuit board through the antenna section and a connection member.

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patent: 2002-335180 (2002-11-01), None
patent: 2005-295312 (2005-10-01), None
European search report dated Apr. 8, 2008.

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