公开(公告)号：US20080265995A1

公开(公告)日：2008-10-30

申请号：US12109596

申请日：2008-04-25

申请人： Naoki Okamoto ,  Hiroyuki Kohama ,  Maki Shibata

发明人： Naoki Okamoto ,  Hiroyuki Kohama ,  Maki Shibata

IPC分类号： H03G3/18

CPC分类号： H03G1/0088

摘要： An amplifier circuit has a current conversion circuit that receives a high frequency signal and produces a signal current according to the high frequency signal; a gain control circuit that includes a control signal input for receiving a control signal, a first output, and a second output, and produces the signal current from the first output or the second output according to the control signal; an impedance circuit that includes a first node connected to the first output, a second node connected to the second output, and a third node, the impedance circuit presenting a predetermined impedance between the nodes; a switch circuit that is inserted between the first output and the first node; and a load impedance unit that is connected to the first output and produces a gain signal representing an amplified high frequency signal.

摘要翻译： 放大器电路具有电流转换电路，其接收高频信号并根据高频信号产生信号电流; 增益控制电路，其包括用于接收控制信号的控制信号输入，第一输出和第二输出，并根据控制信号从第一输出或第二输出产生信号电流; 阻抗电路，其包括连接到所述第一输出的第一节点，连接到所述第二输出的第二节点和所述第三节点，所述阻抗电路在所述节点之间呈现预定的阻抗; 插入在所述第一输出和所述第一节点之间的开关电路; 以及负载阻抗单元，其连接到所述第一输出并产生表示放大的高频信号的增益信号。

公开(公告)号：US07667541B2

公开(公告)日：2010-02-23

申请号：US12109596

申请日：2008-04-25

申请人： Naoki Okamoto ,  Hiroyuki Kohama ,  Maki Shibata

发明人： Naoki Okamoto ,  Hiroyuki Kohama ,  Maki Shibata

IPC分类号： H03G3/10

CPC分类号： H03G1/0088

摘要： An amplifier circuit has a current conversion circuit that receives a high frequency signal and produces a signal current according to the high frequency signal; a gain control circuit that includes a control signal input for receiving a control signal, a first output, and a second output, and produces the signal current from the first output or the second output according to the control signal; an impedance circuit that includes a first node connected to the first output, a second node connected to the second output, and a third node, the impedance circuit presenting a predetermined impedance between the nodes; a switch circuit that is inserted between the first output and the first node; and a load impedance unit that is connected to the first output and produces a gain signal representing an amplified high frequency signal.

摘要翻译： 放大器电路具有电流转换电路，其接收高频信号并根据高频信号产生信号电流; 增益控制电路，其包括用于接收控制信号的控制信号输入，第一输出和第二输出，并根据控制信号从第一输出或第二输出产生信号电流; 阻抗电路，其包括连接到所述第一输出的第一节点，连接到所述第二输出的第二节点和所述第三节点，所述阻抗电路在所述节点之间呈现预定的阻抗; 插入在所述第一输出和所述第一节点之间的开关电路; 以及负载阻抗单元，其连接到所述第一输出并产生表示放大的高频信号的增益信号。