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    • 2. 发明公开
    • 방향성 결합기
    • 方向耦合器
    • KR1020090122960A
    • 2009-12-01
    • KR1020097019643
    • 2008-04-11
    • 미쓰비시덴키 가부시키가이샤
    • 야마우치가즈히사나카야마마사토시오나카야스히로하마다도모카즈이시자카사토루
    • H01P5/18H01P5/16
    • H01P5/16H01P5/185
    • A directional coupler capable of improving directionality of a directional coupler body having four terminals. The directional coupler includes the directional coupler body (10) having the four terminals consisting of an input port (11), an output port (12), a coupling port (13) and an isolation port (14), and a synthesizer (30) for power-synthesizing respective output signals from the coupling port (13) and the isolation port (14) of the directional coupler body (10). It further includes a directionality improving circuit (20a) for amplifying or attenuating to output at least one of the output signals from the coupling port (13) and the isolation port (14). The synthesizer (30) carries out power synthesis using the output signal amplified or attenuated by the directionality improving circuit (20a).
    • 一种能够改善具有四个端子的定向耦合器主体的方向性的定向耦合器。 定向耦合器包括具有由输入端口(11),输出端口(12),耦合端口(13)和隔离端口(14)组成的四个端子的定向耦合器主体(10)和合成器(30) ),用于对来自定向耦合器主体(10)的耦合端口(13)和隔离端口(14)的各个输出信号进行功率合成。 其还包括用于放大或衰减以输出来自耦合端口(13)和隔离端口(14)的至少一个输出信号的方向性改善电路(20a)。 合成器(30)使用由方向性改善电路(20a)放大或衰减的输出信号进行功率合成。