Title:
無線機
Document Type and Number:
Japanese Patent JP4691595
Kind Code:
B2
Abstract:
In a mobile wireless terminal device comprising a first housing that contains a first substrate; an antenna that is disposed in an upper edge portion of the first housing; and a second housing that is disposed in the upper edge portion of the first housing in an openable/closeable manner through a hinge portion, and that contains a second substrate, characterized in that the first substrate and the second substrate are connected by a cable including a GND and a signal line, and current distribution control means having a frequency characteristic with a predetermined impedance is disposed at an arbitrary position on the cable, the cable and a GND on the substrate are connected at an optimum position in each frequency band, and thereby it is possible to obtain excellent antenna characteristics in all frequency bands in use, regardless of a position of a cable connector.
Inventors:
Yusuke Okajima
Application Number:
JP2008523657A
Publication Date:
June 01, 2011
Filing Date:
June 27, 2007
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H01Q1/50; H01Q1/24; H01Q3/22; H01Q3/24; H04B1/38; H04B1/3822; H04M1/00; H04M1/02; H04M1/725
Domestic Patent References:
| JP2006157283A | 2006-06-15 | |||
| JP2004040524A | 2004-02-05 | |||
| JP2006005567A | 2006-01-05 | |||
| JP2005045646A | 2005-02-17 |
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba