- 专利标题： Power amplifier and radio communication device using the amplifier
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申请号： US11258170申请日： 2005-10-26
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公开(公告)号： US07091776B2公开(公告)日： 2006-08-15
- 发明人: Yuta Araki , Hiroyuki Kayano , Keiichi Yamaguchi
- 申请人： Yuta Araki , Hiroyuki Kayano , Keiichi Yamaguchi
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2003-147917 20030526
- 主分类号： H03F3/68
- IPC分类号： H03F3/68
摘要：
A power amplifier includes amplifier elements to amplify input signals of different frequencies. The amplifier also includes a power supply circuit that includes a common power supply path including an end connected to a power supply input terminal connected to a DC power supply. The amplifier further includes individual power supply paths each including an end connected to the other end of the common power supply path, and the other end connected to the main electrode of a corresponding one of the amplifier elements. The individual power supply paths have different impedances.
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