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发明授权
CN101156316B 高频放大器以及收发系统 失效 - 权利终止

高频放大器以及收发系统
摘要：
本发明的目的是在收发信号放大用的高频放大器中，减少集成电路面积，使制造成本下降。高频放大器(101)包括接收信号放大部(102)、发送信号放大部(103)、和螺旋电感器(104)。接收信号放大部(102)的输出与发送信号放大部(103)的输出连接起来，成为高频放大器(101)的输出端子OUT。在该输出端子OUT上连接着一个螺旋电感器(104)。将该螺旋电感器(104)作为接收信号放大部(102)和发送信号放大部(103)的共用负载来使用。由此，就能够使集成电路的面积减少，降低制造成本。
摘要（英）：

In a high frequency amplifier for transmitting/receiving signal amplification, an integrated circuit area is reduced and manufacturing cost is reduced. The high frequency amplifier (101) includes a receiving signal amplifying section (102), a transmitting signal amplifying section (103) and a spiral inductor (104). The output of the receiving signal amplifying section (102) is connected with the output of the transmitting signal amplifying section (103) to be an output terminal (OUT) of the high frequency amplifier (101). The one spiral inductor (104) is connected with the output terminal (OUT). The spiral inductor (104) is used as a load common to the receiving signal amplifying section (102) and the transmitting signal amplifying section (103). Thus, the area of the integrated circuit is reduced and the manufacturing cost is reduced.

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