公开(公告)号：US20060038632A1

公开(公告)日：2006-02-23

申请号：US10923196

申请日：2004-08-20

申请人： Dow-Chih Niu ,  Hao-Jung Li ,  Yuen-Shiang Huang

发明人： Dow-Chih Niu ,  Hao-Jung Li ,  Yuen-Shiang Huang

IPC分类号： H03H7/38

CPC分类号： H03F3/191 ,  H03F2200/294 ,  H03F2200/36 ,  H03H7/38

摘要： A series-parallel resonant matching circuits and a broadband power amplifier thereof are disclosed. The series-parallel resonant matching circuit is connected to the last power transistor and the next power transistor. The series-parallel resonant matching circuit comprises a series matching inductor, a parallel matching inductor and an impedance transformation unit. The impedance transformation unit is connected between the series matching inductor and the intrinsic parallel matching inductor for transforming impedance. The parallel matching inductor and the parallel capacitor of a last level power transistor constitute a LC parallel resonant circuit, the series matching inductor and the series intrinsic capacitor of a next level power transistor constitute a LC series resonant circuit. Besides, the intrinsic parallel capacitance is a drain-to-source capacitor for the power transistor. The intrinsic series capacitance is a gate-to-source capacitor for the power transistor.

摘要翻译： 公开了串并联谐振匹配电路及其宽带功率放大器。 串联并联谐振匹配电路连接到最后一个功率晶体管和下一个功率晶体管。 串并联谐振匹配电路包括串联匹配电感器，并联匹配电感器和阻抗变换单元。 阻抗变换单元连接在串联匹配电感器和本征并联匹配电感器之间，用于变换阻抗。 最后一级功率晶体管的并联匹配电感和并联电容构成LC并联谐振电路，下一级功率晶体管的串联匹配电感和串联本征电容构成LC串联谐振电路。 此外，本征并联电容是功率晶体管的漏极 - 源极电容。 本征串联电容是功率晶体管的栅极 - 源极电容。