公开(公告)号：US08390382B2

公开(公告)日：2013-03-05

申请号：US13024740

申请日：2011-02-10

申请人： Ki Joong Kim ,  Youn Suk Kim ,  Seong Geon Kim ,  Jun Goo Won ,  Joong Jin Nam

发明人： Ki Joong Kim ,  Youn Suk Kim ,  Seong Geon Kim ,  Jun Goo Won ,  Joong Jin Nam

IPC分类号： H03F3/00

CPC分类号： H03F3/195 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6644 ,  H01L2223/6688 ,  H01L2224/48091 ,  H01L2224/48111 ,  H01L2224/48137 ,  H01L2224/48195 ,  H01L2224/48227 ,  H01L2224/48465 ,  H01L2224/49113 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/19107 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H01L2924/3025 ,  H03F2200/391 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

摘要： There is provided a power amplifier circuit capable of improving cross isolation between a high frequency band power coupler and a low frequency band power coupler, by directly transmitting power to the high frequency band power coupler and the low frequency band power coupler from a power amplifier, and forming a predetermined inductance circuit or an LC resonance circuit in a line transmitting the power to the high frequency band power coupler. The power amplifier circuit may include a power amplifying unit supplied with power from the outside and amplifying an input signal, a coupling unit having a high frequency band power coupler and a low frequency band power coupler, and an isolation unit including a first power line and a second power line, wherein the first power line has an inductor blocking signal interference generated in a predetermined frequency band.

摘要翻译： 通过从功率放大器直接向高频带功率耦合器和低频带功率耦合器发送功率，提供了能够改善高频带功率耦合器和低频带功率耦合器之间的交叉隔离的功率放大器电路， 以及在将功率发送到高频带功率耦合器的线路中形成预定的电感电路或LC谐振电路。 功率放大器电路可以包括从外部供电并放大输入信号的功率放大单元，具有高频带功率耦合器和低频带功率耦合器的耦合单元，以及包括第一电力线和 第二电力线，其中所述第一电力线具有在预定频带中产生的电感器阻塞信号干扰。