Duplexer with stepped impedance resonators
    51.
    发明授权
    Duplexer with stepped impedance resonators 失效
    带有阶梯式阻抗谐振器的双工器

    公开(公告)号:US06373352B1

    公开(公告)日:2002-04-16

    申请号:US09530322

    申请日:2000-04-28

    IPC分类号: H01P512

    CPC分类号: H01P1/2136

    摘要: A duplexer using a dielectric block and having stepped impedance resonators is disclosed. The duplexer comprising open ended resonators arranged in a front side of the dielectric block, shorted resonators arranged in a rear side of the dielectric block, first grooves for controlling receiving coupling at the receiving filter, second grooves for controlling transmitting coupling at the transmitting filter, and a plurality of recesses formed at the bottom of the dielectric block, extending from a first aperture of the open ended resonators to a second aperture of the shorted resonators. The duplexer according to this invention is miniaturized by excluding external elements and has excellent attenuation characteristics, and is being manufactured by simple processes.

    摘要翻译: 公开了一种使用介质块并具有阶梯式阻抗谐振器的双工器。 该双工器包括布置在介质块的前侧的开放式谐振器,布置在介质块的后侧的短路的谐振器,用于控制在接收滤波器处的接收耦合的第一沟槽,用于控制在发射滤波器处的发射耦合的第二沟槽, 以及形成在所述介质块的底部处的多个凹部,从所述开口谐振器的第一孔延伸到所述短路谐振器的第二孔。 根据本发明的双工器通过排除外部元件而小型化并具有优异的衰减特性,并且通过简单的工艺制造。

    Duplexer having dual coupled line characteristics
    52.
    发明授权
    Duplexer having dual coupled line characteristics 失效
    双工器具有双重耦合线路特性

    公开(公告)号:US5886986A

    公开(公告)日:1999-03-23

    申请号:US840641

    申请日:1997-04-25

    IPC分类号: H04B1/50 H01P1/213

    CPC分类号: H01P1/2136

    摘要: A duplexer having dual coupled line characteristics is disclosed. With a small number of resonators and without using an external device such as a chip inductor or a chip capacitor, the signals of the receiving frequency can be improvingly damped. The diameters of the transmitting terminal dielectric filter resonators and the receiving terminal dielectric filter resonators are not same, but their diameters at an open terminal and at a short circuit terminal are made different from each other so as to differentiate a coupling amount at the short circuit terminal from that at the open terminal. Further, the transmitting terminal filter resonators and the receiving terminal dielectric filter resonator are provided in a form of grooves, and sizes of the grooves near the open terminal are made different from those of the grooves near the short circuit terminal so as to differentiate a coupling amount of the resonators at the short circuit terminal from those at the open terminal. The duplexer of the present invention is used in the transmission/receiving separate type filter of the mobile communication.

    摘要翻译: 公开了具有双耦合线特性的双工器。 使用少量谐振器并且不使用诸如片式电感器或片式电容器的外部装置,接收频率的信号可以被改善地衰减。 发射端介质滤波器谐振器和接收端介质滤波器谐振器的直径不相同,但是它们在开路端子和短路端子处的直径彼此不同,以便在短路时区分耦合量 终端从开放终端。 此外,发送端子滤波器谐振器和接收端介质滤波器谐振器以沟槽的形式设置,并且开口端子附近的槽的尺寸与短路端子附近的槽的尺寸不同,以便使耦合 在短路端子处的谐振器的数量与开路端子处的谐振器的量相同。 本发明的双工器用于移动通信的发送/接收分离型滤波器。