发明名称 |
RADIO FREQUENCY POWER AMPLIFIER AND WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME |
摘要 |
To provide a radio frequency power amplifier that realizes a favorable high-frequency characteristic without using an isolator and also achieves low power consumption. The radio frequency power amplifier includes: a power amplifier which amplifies a radio frequency signal; a voltage supplying unit which supplies a collector voltage to the power amplifier; a current supplying unit which supplies a bias current to the power amplifier; and a bias current detecting unit which detects the bias current. The voltage supplying unit has a control unit which sets the power supply voltage at: a first voltage when the detected bias current is lower than a bias-current reference value; and a second voltage lower than the first voltage when the detected bias current is higher than the bias-current reference value.
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申请公布号 |
US2011175681(A1) |
申请公布日期 |
2011.07.21 |
申请号 |
US20100971452 |
申请日期 |
2010.12.17 |
申请人 |
PANASONIC CORPORATION |
发明人 |
INAMORI MASAHIKO;MOTOYOSHI KANAME;NAKAYAMA MASAO;YAMAMOTO KOUKI;TAKAGI TSUNEHIRO;SUGIYAMA HIROSHI;KAIDO JUNJI |
分类号 |
H03F3/04 |
主分类号 |
H03F3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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