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Patent Searching and Data


Title:
FOLDING TYPE PORTABLE RADIO
Document Type and Number:
Japanese Patent JP2009182851
Kind Code:
A
Abstract:

To provide a folding type portable radio which copes with a plurality of frequency bands, and is made thinner.

A control part 5, a radio part 6, and a matching switching part 7 are present on the first circuit board 4 of a first casing 1. The matching switching part 7 includes a switching means 8, a first circuit element 9, and a second circuit element 10. An antenna element 11, a power supply part 12 which supplies power to the antenna element 11 are present inside a second casing 2, and a matching circuit 14 connected to the power supply part 12 is present on the second circuit board 13 of the second casing 2. The radio part 6 and the antenna element 11 perform impedance matching using the matching circuit 14. The matching circuit 14 and the radio part 6 are connected to each other by a transmission line including a coaxial cable 15. The switching means 8 of the matching switching part 7 is connected to the transmission line.


Inventors:
KONNO DAIGO
TANAKA NOBUAKI
MAEDA KENICHI
HORIBATA KENJI
TSUCHIYA KENTA
Application Number:
JP2008021487A
Publication Date:
August 13, 2009
Filing Date:
January 31, 2008
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
H01Q1/24; H01Q1/50; H04B1/3822; H04B1/40; H04M1/02; H04W88/06
Attorney, Agent or Firm:
Koichi Washida