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    • 20. 发明授权
    • Amplifier and radio
    • 放大器和收音机
    • US07876162B2
    • 2011-01-25
    • US12558807
    • 2009-09-14
    • Kohei OnizukaMasahiro HosoyaHiroaki IshiharaShoji OtakaOsamu Watanabe
    • Kohei OnizukaMasahiro HosoyaHiroaki IshiharaShoji OtakaOsamu Watanabe
    • H03F3/14
    • H03F3/602H03F3/26H03F2200/537H03F2200/541H03F2200/543
    • An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal.
    • 放大器包括:基板; 布置在基板上的第一至第四放大单元,每个具有第一和第二端子,并且每个放大第一和第二信号以产生第一和第二放大信号; 布置在所述基板上的第一感应线,连接所述第一放大单元的第一端子和所述第二放大单元的所述第一端子,并且具有直线部分和弯曲部分; 布置在基板上的第二感应线,连接第二放大单元的第二端子和第三放大单元的第一端子,并具有直线部分和弯曲部分; 布置在基板上的第三感应线,连接第三放大单元的第二端子和第四放大单元的第一端子,并具有直线部分和弯曲部分; 布置在基板上的第四感应线,连接第四放大单元的第二端子和第一放大单元的第二端子,并具有直线部分和弯曲部分; 以及第五感应线,其与第一至第四感应线建立磁场耦合,并且具有第三和第四端子,将被放大的多个第一放大信号组合以输出来自第三端子的第一组合信号,并将多个 第二放大信号以从第四终端输出第二组合信号。