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Patent Searching and Data


Title:
高周波電力増幅器及びその出力電力調整方法
Document Type and Number:
Japanese Patent JP4583967
Kind Code:
B2
Abstract:
By using a radio-frequency power amplifier which turns off an Nth stage radio-frequency amplifying transistor when the level of radio-frequency output power falls below a predetermined value, it is possible to improve the linearity when the level of the radio-frequency output power is so low.

Inventors:
Tomiharu Tomizawa
Application Number:
JP2005047692A
Publication Date:
November 17, 2010
Filing Date:
February 23, 2005
Export Citation:
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Assignee:
Panasonic Corporation
International Classes:
H03F1/32; H03F1/06; H03F3/24; H04B1/04
Domestic Patent References:
JP2005020476A
JP2004289812A
JP7115381A
JP2005518684A
JP10028020A
JP2005217558A
JP2001127651A
Attorney, Agent or Firm:
Shohei Oguri
Toshimitsu Ichikawa
Kimihide Hashimoto