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6 条记录 (耗时 0.019 秒)

    Laminated delay line
    4.
    发明授权
    Laminated delay line 失效
    层压延迟线

    公开(公告)号：US5436601A

    公开(公告)日：1995-07-25

    申请号：US183285

    申请日：1994-01-18

    申请人： Harufumi Mandai ,  Noboru Kato ,  Akihiro Ochii

    发明人： Harufumi Mandai ,  Noboru Kato ,  Akihiro Ochii

    IPC分类号： H01F17/00 ,  H03H3/00 ,  H03H7/32 ,  H03H7/34 ,  H03H7/30

    CPC分类号： H03H7/32 ,  H03H3/00

    摘要： Earth electrodes are formed on two layers. A capacitor electrode is formed on a layer therebetween. A capacitor is formed by the capacitor electrode and the earth electrodes. Coil electrodes are formed respectively on a plural number of layers. The plural number of coil electrodes are connected through a through hole. An intermediate portion of the connected coil electrodes is connected to the earth electrodes to form a transformer. A delay line is formed by connecting the capacitor electrode and the coil electrodes via external electrodes.

    摘要翻译： 接地电极形成在两层上。 在它们之间的层上形成电容器电极。 电容器由电容器电极和接地电极形成。 线圈电极分别形成在多个层上。 多个线圈电极通过通孔连接。 连接的线圈电极的中间部分连接到接地电极以形成变压器。 通过外部电极连接电容器电极和线圈电极来形成延迟线。

    Multiplexer
    5.
    发明授权
    Multiplexer 失效
    复用器

    公开(公告)号：US07190970B2

    公开(公告)日：2007-03-13

    申请号：US10718798

    申请日：2003-11-24

    申请人： Akihiro Ochii ,  Masayuki Shibuya ,  Norio Nakajima

    发明人： Akihiro Ochii ,  Masayuki Shibuya ,  Norio Nakajima

    IPC分类号： H03H9/72

    CPC分类号： H03H7/463 ,  H03H9/0576 ,  H03H9/72 ,  H03H9/725 ,  H04B1/0057 ,  H05K1/0237 ,  H05K1/181 ,  H05K3/403

    摘要： A small-sized low-cost multiplexer with a low insertion loss includes a first filter defining a lowpass filter that passes a signal in a first frequency band and attenuates a signal in second and third frequency bands, a second filter including a SAW filter and defining a bandpass filter that passes a signal in the second frequency band and attenuates a signal in the first and third frequency bands, and a third filter defining a highpass filter that passes a signal in the third frequency band and attenuates a signal in the first and second frequency bands. One of two ports of each of the first, second, and third filters are connected in common with a common port.

    摘要翻译： 具有低插入损耗的小尺寸低成本多路复用器包括限定通过第一频带中的信号并衰减第二和第三频带中的信号的低通滤波器的第一滤波器，包括SAW滤波器的第二滤波器和限定 通过第二频带中的信号并衰减第一和第三频带中的信号的带通滤波器，以及限定通过第三频带中的信号的高通滤波器的第三滤波器，并且衰减第一和第二频带中的信号 频带。 第一，第二和第三滤波器中的每一个的两个端口之一与公共端口共同连接。

    Composite filter comprising LC and saw filters and radio communication apparatus using the filter
    6.
    发明授权
    Composite filter comprising LC and saw filters and radio communication apparatus using the filter 有权
    包括LC和锯片滤波器的复合滤波器和使用滤波器的无线电通信装置

    公开(公告)号：US06249194B1

    公开(公告)日：2001-06-19

    申请号：US09191041

    申请日：1998-11-12

    申请人： Takahiro Watanabe ,  Norio Nakajima ,  Akihiro Ochii

    发明人： Takahiro Watanabe ,  Norio Nakajima ,  Akihiro Ochii

    IPC分类号： H01P1213

    CPC分类号： H03H9/0557 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1775 ,  H03H9/1071 ,  H03H2001/0085

    摘要： A composite filter, with a laminated body formed by laminating a dielectric layer and an electric conductor layer; a concave portion provided on at least one major surface of said laminated body; external terminals provided on at least a side surface of said laminated body; an LC filter made of an inductance element and a capacitance element respectively formed by said electric conductor layer of said laminated body; a surface acoustic wave filter arranged in said concave portion of said laminated body; a cover sealing said concave portion; two of said external terminals constituting the input terminals of said surface acoustic wave filter and of said LC filter respectively and two of said external terminals constituting the output terminals of said surface acoustic wave filter and of said LC filter respectively; and said surface acoustic wave filter and said LC filter are independent without being connected to each other in said laminated body. The above composite filter has a reduced number of parts and a simpler assembly process. A radio communication apparatus can advantageously use the disclosed composite filter.

    摘要翻译： 一种复合过滤器，其具有通过层叠电介质层和导电体层而形成的层叠体; 设置在所述层压体的至少一个主表面上的凹部; 设置在所述层叠体的至少侧面的外部端子; 由电感元件制成的LC滤波器和由所述层叠体的所述导电层分别形成的电容元件; 布置在所述层叠体的所述凹部中的表面声波滤波器; 密封所述凹部的盖; 分别构成所述声表面波滤波器和所述LC滤波器的输入端的两个外部端子和分别构成所述表面声波滤波器和所述LC滤波器的输出端的两个外部端子; 并且所述表面声波滤波器和所述LC滤波器是独立的，而不在所述层叠体中彼此连接。 上述复合过滤器具有减少的部件数量和更简单的组装过程。 无线电通信装置可以有利地使用所公开的复合滤波器。