Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PORTABLE RADIO APPARATUS
Document Type and Number:
Japanese Patent JP2010109757
Kind Code:
A
Abstract:

To reduce costs by independently designing respective matching circuits and suppressing an increase in a circuit scale.

A filter 102 suppresses frequency bands f2-f3 of signals received by an antenna element 101. A filter 105 suppresses the frequency band f1 of signals received by the antenna element 101. A radio section 104 demodulates signals of which the frequency bands f2-f3 have been suppressed to obtain data superimposed on the signal of the frequency band f1. A radio section 107 demodulates the signal of which the frequency band f1 has been suppressed to obtain data superimposed on the signals of the frequency bands f2-f3. A matching circuit 103 is connected between the filter 102 and the radio section 104 and performs matching of impedance of the filter 102 and the radio section 104. A matching circuit 106 is connected between the filter 105 and the radio section 107 and performs matching of impedance of the filter 105 and the radio section 107.


Inventors:
SATO HIROSHI
KOYANAGI YOSHIO
KANEZAKI YOSHIHIRO
AOKI KOTA
Application Number:
JP2008280335A
Publication Date:
May 13, 2010
Filing Date:
October 30, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PANASONIC CORP
International Classes:
H01Q1/24; H03H7/38; H04B1/3822; H04B1/40
Domestic Patent References:
JP2005057642A2005-03-03
JP2005303764A2005-10-27
JP2006121736A2006-05-11
JP2003318636A2003-11-07
JP2005519310A2005-06-30
JPH06236815A1994-08-23
Foreign References:
WO2007143616A22007-12-13
Attorney, Agent or Firm:
Koichi Washida



 
Previous Patent: PORTABLE WIRELESS EQUIPMENT

Next Patent: CELLULAR PHONE