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    • 5. 发明申请
    • Amplifier
    • 放大器
    • US20070164819A1
    • 2007-07-19
    • US10593720
    • 2005-03-24
    • Junetsu UrataNaoki OnishiMasaki SutoHironori Yokoyama
    • Junetsu UrataNaoki OnishiMasaki SutoHironori Yokoyama
    • H03F3/68
    • H03F1/0288H03F1/30H03F2200/447H03F2200/543H05K1/0243H05K2201/0187
    • With an amplifier configured by including Doherty-type amplifier sections 21 to 25, the area of the circuits is reduced so that the size reduction is achieved. Moreover, the properties of the Doherty-type amplifier sections (Doherty properties) are stabilized against any environmental change of humidity and temperature. As an example, the permittivity of a substrate 3 configuring one or more of quarter wavelength lines 23 and/or 24 included in the Doherty-type amplifier sections 21 to 25 is increased compared with the permittivity of a substrate 2 in a close range. As another example, a line portion forming an output circuit of a carrier amplifier in the Doherty-type amplifier sections is configured by using a substrate material being physically stable against either or both of any change observed in the humidity and the temperature.
    • 通过包括Doherty型放大器部分21至25构成的放大器,电路的面积减小,从而实现了尺寸减小。 此外,Doherty型放大器部分(Doherty性能)的性能可以抵抗任何湿度和温度的环境变化。 作为示例,构成包括在Doherty型放大器部21至25中的四分之一波长线23和/或24中的一个或多个的基板3的介电常数相对于近距离的基板2的介电常数增加。 作为另一个例子,在Doherty型放大器部分中形成载流子放大器的输出电路的线路部分通过使用在湿度和温度中观察到的任何变化中的任一个或两个而物理上稳定的衬底材料来构成。