公开(公告)号：US20100194481A1

公开(公告)日：2010-08-05

申请号：US12696376

申请日：2010-01-29

申请人： Masatoshi HASE ,  Masahiro ITO ,  Takashi SOGA ,  Satoshi TANAKA

发明人： Masatoshi HASE ,  Masahiro ITO ,  Takashi SOGA ,  Satoshi TANAKA

IPC分类号： H03F3/68

CPC分类号： H03F3/245 ,  H03F1/0272 ,  H03F3/195 ,  H03F3/68 ,  H03F2200/105 ,  H03F2200/108 ,  H03F2200/204 ,  H03F2200/222 ,  H03F2200/387 ,  H03F2200/408 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2203/45136 ,  H03G3/3042

摘要： The RF power amplifier circuit including multiple amplification stages has a previous-stage amplifier, a next-stage amplifier and a controller. The previous-stage amplifier responds to an RF transmission input signal. The next-stage amplifier responds to an amplification signal output by the previous-stage amplifier. In response to an output-power-control voltage, the controller controls the former- and next-stage amplifiers in quiescent current and gain. In response to the output-power-control voltage, the quiescent current and gain of the previous-stage amplifier are continuously changed according to a first continuous function, whereas those of the next-stage amplifier are continuously changed according to a second continuous function. The second continuous function is higher than the first continuous function by at least one in degree. The RF power amplifier circuit brings about the effect that the drop of the power added efficiency in low and middle power modes is relieved.

摘要翻译： 包括多个放大级的RF功率放大器电路具有前级放大器，下一级放大器和控制器。 前级放大器响应RF传输输入信号。 下一级放大器响应上一级放大器输出的放大信号。 响应于输出功率控制电压，控制器控制前级和后级放大器的静态电流和增益。 响应于输出功率控制电压，前级放大器的静态电流和增益根据第一连续功能连续地改变，而下一级放大器的静态电流和增益根据第二连续功能连续地改变。 第二连续功能比第一连续功能高至少一个程度。 RF功率放大器电路产生了中低功率模式下功率增加效率下降的效果。

公开(公告)号：US20120112838A1

公开(公告)日：2012-05-10

申请号：US13345895

申请日：2012-01-09

申请人： Masatoshi HASE ,  Masahiro ITO ,  Takashi SOGA ,  Satoshi TANAKA

发明人： Masatoshi HASE ,  Masahiro ITO ,  Takashi SOGA ,  Satoshi TANAKA

IPC分类号： H03F3/04 ,  H03F3/68

CPC分类号： H03F3/245 ,  H03F1/0272 ,  H03F3/195 ,  H03F3/68 ,  H03F2200/105 ,  H03F2200/108 ,  H03F2200/204 ,  H03F2200/222 ,  H03F2200/387 ,  H03F2200/408 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2203/45136 ,  H03G3/3042

摘要： The RF power amplifier circuit including multiple amplification stages has a previous-stage amplifier, a next-stage amplifier and a controller. The previous-stage amplifier responds to an RF transmission input signal. The next-stage amplifier responds to an amplification signal output by the previous-stage amplifier. In response to an output-power-control voltage, the controller controls the former- and next-stage amplifiers in quiescent current and gain. In response to the output-power-control voltage, the quiescent current and gain of the previous-stage amplifier are continuously changed according to a first continuous function, whereas those of the next-stage amplifier are continuously changed according to a second continuous function. The second continuous function is higher than the first continuous function by at least one in degree. The RF power amplifier circuit brings about the effect that the drop of the power added efficiency in low and middle power modes is relieved.

摘要翻译： 包括多个放大级的RF功率放大器电路具有前级放大器，下一级放大器和控制器。 前级放大器响应RF传输输入信号。 下一级放大器响应上一级放大器输出的放大信号。 响应于输出功率控制电压，控制器控制前级和后级放大器的静态电流和增益。 响应于输出功率控制电压，前级放大器的静态电流和增益根据第一连续功能连续地改变，而下一级放大器的静态电流和增益根据第二连续功能连续地改变。 第二连续功能比第一连续功能高至少一个程度。 RF功率放大器电路产生了中低功率模式下功率增加效率下降的效果。