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    • 25. 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。
    • 27. 发明申请
    • FMWC SIGNAL GENERATOR AND RADAR APPARATUS USING FMCW SIGNAL GENERATOR
    • FMWC信号发生器和使用FMCW信号发生器的雷达设备
    • US20100073222A1
    • 2010-03-25
    • US12407817
    • 2009-03-20
    • Toshiya MitomoHiroaki HoshinoOsamu WatanabeShoji Otaka
    • Toshiya MitomoHiroaki HoshinoOsamu WatanabeShoji Otaka
    • G01S13/00
    • G01S13/345G01S7/35
    • An FMCW signal generator includes a frequency divider to divide the FMCW signal at a preset dividing ratio, a reference signal generator to periodically generate a reference signal at a second time interval not less than a loop time constant set for a PLL, a frequency of the reference signal being discretely swept within a range of fc±Δf (fc is a center frequency, and Δf is a frequency sweep width) at a first time interval not more than the loop time constant, a comparison unit to compare the frequency divided signal with the reference signal to generate a comparison result signal corresponding to a phase difference between the frequency divided signal and the reference signal, a loop filter to filter the comparison result signal to generate a control voltage signal, and a VCO to have an oscillation frequency thereof controlled by the control voltage signal.
    • FMCW信号发生器包括分频器,用于以预设的分频比对FMCW信号进行分频,参考信号发生器以不小于为PLL设置的环路时间常数的第二时间间隔周期性地产生参考信号,频率为 参考信号在fc±&Dgr的范围内离散地扫描; f(fc是中心频率,并且&Dgr; f是频率扫描宽度)在不大于循环时间常数的第一时间间隔,比较单元 具有参考信号的频率分频信号,以产生对应于分频信号和参考信号之间的相位差的比较结果信号;环路滤波器,用于对比较结果信号进行滤波以产生控制电压信号;以及VCO, 振荡频率由控制电压信号控制。