公开(公告)号：US20100120375A1

公开(公告)日：2010-05-13

申请号：US12692325

申请日：2010-01-22

申请人： Masaru SAWADA ,  Hideaki KONDO ,  Norio MURAKAMI

发明人： Masaru SAWADA ,  Hideaki KONDO ,  Norio MURAKAMI

IPC分类号： H04B1/40

CPC分类号： H04B1/48 ,  H04B1/0458

摘要： A transmitting and receiving circuit includes a transmitting side amplifier circuit amplifying a transmission signal transmitted from an antenna, a receiving side amplifier circuit amplifying a reception signal received by the antenna and being electrically connected to the a transmitting side amplifier circuit, a first matching circuit matching the antenna and the transmitting side amplifier circuit, a second matching circuit matching the antenna and the receiving side amplifier circuit, a first current source circuit capable of controlling an operating state and setting a first connection point between the first matching circuit and an output terminal of the transmitting side amplifier circuit to a given voltage, and a second current source circuit capable of controlling an operating state and setting a second connection point between the second matching circuit and an input terminal of the receiving side amplifier circuit to a given voltage.

摘要翻译： 发送和接收电路包括放大从天线发送的发送信号的发送侧放大器电路，放大由天线接收的并与发送侧放大器电路电连接的接收信号的接收侧放大器电路，第一匹配电路匹配 天线和发送侧放大器电路，匹配天线和接收侧放大器电路的第二匹配电路，能够控制操作状态并将第一匹配电路和输出端之间的第一连接点设置为第一电流源电路的第一电流源电路 所述发送侧放大器电路为给定电压;以及第二电流源电路，其能够控制操作状态，并将所述第二匹配电路和所述接收侧放大器电路的输入端之间的第二连接点设定为给定电压。