公开(公告)号：US06975185B2

公开(公告)日：2005-12-13

申请号：US10671783

申请日：2003-09-29

Applicant: Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

Inventor： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

IPC: H03H9/145 ,  H03H9/64 ,  H03H9/72

CPC classification number: H03H9/725 ,  H03H9/6483

Abstract: A surface acoustic wave filter includes a series-arm resonators and parallel-arm resonators that are connected in a ladder-like structure, each having an interdigital transducer formed on a piezoelectric substrate, and at least one of the series-arm resonators having a different static capacitance from the other series-arm resonators. In this surface acoustic wave filter, at least one of the series-arm resonators except the series-arm resonator located at the first stage in the ladder-like structure has a lower average resonant frequency than the other series-arm resonators.

Abstract translation: 表面声波滤波器包括串联臂谐振器和并联臂谐振器，其以阶梯状结构连接，每个具有形成在压电基板上的叉指式换能器，并且串联臂谐振器中的至少一个具有不同的 来自其他串联臂谐振器的静态电容。 在该声表面波滤波器中，位于阶梯状结构中的第一级的串联臂谐振器以外的串联臂谐振器中的至少一个具有比其他串联臂谐振器更低的平均谐振频率。

公开(公告)号：US20050242903A1

公开(公告)日：2005-11-03

申请号：US11114128

申请日：2005-04-26

Applicant: Shogo Inoue ,  Motoyuki Tajima ,  Takayuki Yamaji ,  Yasufumi Kaneda ,  Osamu Kawachi ,  Masanori Ueda

Inventor： Shogo Inoue ,  Motoyuki Tajima ,  Takayuki Yamaji ,  Yasufumi Kaneda ,  Osamu Kawachi ,  Masanori Ueda

IPC: H03H9/25 ,  H03H9/00 ,  H03H9/05 ,  H03H9/64

CPC classification number: H03H9/059 ,  H03H9/0071 ,  H03H9/0095

Abstract: A balanced filter includes a package having an input ground metal pattern and an output ground metal pattern, and a filter chip having an inphase filter and an antiphase filter, which filters are mounted on the package, at least one of the inphase and antiphase filters having an input ground terminal connected to the input ground metal pattern and an output ground terminal connected to the output ground metal pattern, the input and output ground terminals of said at least one of the inphase and antiphase filters being separate from each other on the filter chip.

Abstract translation: 平衡滤波器包括具有输入接地金属图案和输出接地金属图案的封装以及具有同相滤波器和反相滤波器的滤波器芯片，该滤波器安装在封装上，至少一个同相滤波器和反相滤波器具有 连接到输入接地金属图案的输入接地端子和连接到输出接地金属图案的输出接地端子，所述至少一个同相和反相滤波器的输入和输出接地端子在滤波器芯片上彼此分离 。

公开(公告)号：US06570471B2

公开(公告)日：2003-05-27

申请号：US09915550

申请日：2001-07-27

Applicant: Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

Inventor： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

IPC: H03H964

CPC classification number: H03H9/14505 ,  H03H9/14526 ,  H03H9/6423 ,  H03H9/6483

Abstract: A surface acoustic wave filter includes a piezoelectric substrate having formed thereon plural surface acoustic wave resonators electrically connected in a ladder form for exciting a surface acoustic wave, wherein each of the surface acoustic wave resonators is composed of an interdigital transducer and reflectors arranged closely on both sides of the transducer in a direction parallel to a propagation direction of the excited surface acoustic wave; the interdigital transducer of at least one of the surface acoustic wave resonators is composed of a prescribed number of pairs of comb form electrodes; and the surface acoustic wave excited by the pairs of comb form electrodes contains two kinds of surface acoustic waves having phases that are different from each other by 180°.

Abstract translation: 表面声波滤波器包括：压电基板，其上形成有以梯形电连接以激励表面声波的多个声表面波谐振器，其中每个声表面波谐振器由交叉指型换能器和紧密配置在两者上的反射器组成 换能器的侧面在平行于被激励表面声波的传播方向的方向上; 至少一个声表面波谐振器的叉指换能器由规定数量的梳形电极对组成; 并且由梳形电极对激发的表面声波包含具有彼此相差180°的相位的两种表面声波。

公开(公告)号：US06466108B2

公开(公告)日：2002-10-15

申请号：US09771877

申请日：2001-01-30

Applicant: Takashi Matsuda ,  Jun Tsutsumi ,  Shogo Inoue ,  Osamu Ikata

Inventor： Takashi Matsuda ,  Jun Tsutsumi ,  Shogo Inoue ,  Osamu Ikata

IPC: H03H964

CPC classification number: H03H9/14582 ,  H03H9/14552 ,  H03H9/6423 ,  H03H9/6483

Abstract: A surface acoustic wave resonator includes a piezoelectric substrate having formed thereon a interdigital transducer part comprising plural electrode fingers having a period pi that is substantially equal to a wavelength of a surface acoustic wave to be excited, and at least one reflector arranged in the vicinity of the interdigital transducer part to reflect the surface acoustic wave excited by the interdigital transducer part in a direction parallel to a propagation direction of the surface acoustic wave. The interdigital transducer part has three or more electrode fingers within the period pi, and the reflector has plural gratings having a period pr that is equal to a half of a wavelength of a surface acoustic wave propagating in the reflector.

Abstract translation: 表面声波谐振器包括：压电基板，其上形成有叉指式换能器部分，其包括多个电极指，所述多个电极指具有基本上等于待激励的表面声波的波长的周期pi，以及布置在 叉指换能器部分，以反射由指数变换器部分在与声表面波的传播方向平行的方向上激发的表面声波。 叉指换能器部分在周期pi内具有三个或更多个电极指，并且反射器具有多个光栅，其周期pr等于在反射器中传播的声表面波的波长的一半。

公开(公告)号：US09136823B2

公开(公告)日：2015-09-15

申请号：US13344265

申请日：2012-01-05

Applicant: Shogo Inoue ,  Hiroshi Nakamura

Inventor： Shogo Inoue ,  Hiroshi Nakamura

IPC: H03H9/72 ,  H03H9/70 ,  H03H9/00 ,  H03H9/02 ,  H03H9/54 ,  H03H9/58 ,  H03H9/64

CPC classification number: H03H9/725 ,  H03H9/0023 ,  H03H9/0071 ,  H03H9/0085 ,  H03H9/02669 ,  H03H9/542 ,  H03H9/585 ,  H03H9/6436 ,  H03H9/644 ,  H03H9/6483 ,  H03H9/6489 ,  H03H9/706

Abstract: A duplexer includes a reception filter that is connected between a reception terminal and an antenna terminal and includes one or a plurality of series resonators that are acoustic wave resonators, and a transmission filter that is connected between a transmission terminal and the antenna terminal and includes one or a plurality of acoustic wave resonators, a resonance frequency of a first series resonator that is one of the one or the plurality of series resonators and is closest to the antenna terminal in the reception filter being higher than an upper limit frequency of a reception band of the reception filter.

Abstract translation: 双工器包括连接在接收端子和天线端子之间的接收滤波器，并且包括作为声波谐振器的一个或多个串联谐振器，以及连接在发送端子和天线端子之间的发送滤波器，并且包括一个 或多个声波谐振器，作为一个或多个串联谐振器之一并且最接近接收滤波器中的天线端子的第一串联谐振器的谐振频率高于接收频带的上限频率 的接收过滤器。

公开(公告)号：US09035722B2

公开(公告)日：2015-05-19

申请号：US13454940

申请日：2012-04-24

Applicant: Motoaki Hara ,  Shogo Inoue ,  Jun Tsutsumi ,  Masafumi Iwaki

Inventor： Motoaki Hara ,  Shogo Inoue ,  Jun Tsutsumi ,  Masafumi Iwaki

IPC: H03H9/64 ,  H03H9/54 ,  H03H9/72 ,  H03H9/00 ,  H03H9/05

CPC classification number: H03H9/542 ,  H03H9/0023 ,  H03H9/0566 ,  H03H9/725

Abstract: A ladder filter includes at least one series resonator connected in series between an input terminal and an output terminal, at least one parallel resonator connected in parallel with the at least one series resonator, an additional resonator connected in series between the at least one series resonator and one of the input terminal and the output terminal, and an inductor connected in series to the additional resonator, the additional resonator having a resonance frequency higher than an anti-resonance frequency of the at least one series resonator.

Abstract translation: 梯形滤波器包括串联连接在输入端和输出端之间的至少一个串联谐振器，与至少一个串联谐振器并联连接的至少一个并联谐振器，串联连接在至少一个串联谐振器 以及输入端子和输出端子之一以及与附加谐振器串联连接的电感器，所述附加谐振器的谐振频率高于所述至少一个串联谐振器的反谐振频率。

公开(公告)号：US08552820B2

公开(公告)日：2013-10-08

申请号：US13482103

申请日：2012-05-29

Applicant: Motoaki Hara ,  Jun Tsutsumi ,  Shogo Inoue ,  Masafumi Iwaki ,  Masanori Ueda

Inventor： Motoaki Hara ,  Jun Tsutsumi ,  Shogo Inoue ,  Masafumi Iwaki ,  Masanori Ueda

IPC: H03H9/64 ,  H03H9/72

CPC classification number: H03H7/38 ,  H03H9/0028 ,  H03H9/009 ,  H03H9/0222 ,  H03H9/0576 ,  H03H9/725

Abstract: A filter includes at least one series resonator and parallel resonators, the at least one series resonator and the parallel resonators including excitation electrodes and reflectors, the parallel resonators having different resonance frequencies, and at least one of the parallel resonators other than the parallel resonator having the highest resonance frequency being configured to have a pitch of reflectors that is smaller than that of excitation electrodes.

Abstract translation: 滤波器包括至少一个串联谐振器和并联谐振器，所述至少一个串联谐振器和并联谐振器包括激励电极和反射器，并联谐振器具有不同的谐振频率，并且并联谐振器中的至少一个并联谐振器具有 最高谐振频率被配置为具有比激励电极小的反射器的间距。

公开(公告)号：US20120286895A1

公开(公告)日：2012-11-15

申请号：US13466319

申请日：2012-05-08

Applicant: Motoaki HARA ,  Shogo INOUE ,  Jun TSUTSUMI ,  Masafumi IWAKI

Inventor： Motoaki HARA ,  Shogo INOUE ,  Jun TSUTSUMI ,  Masafumi IWAKI

IPC: H03H9/70 ,  H03H9/72

CPC classification number: H03H9/0566 ,  H03H9/0023 ,  H03H9/1085 ,  H03H9/542 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/725

Abstract: A ladder filter includes at least one series resonator connected in series between an input terminal and an output terminal, at least one parallel resonator connected in parallel with the at least one series resonator, and an inductor connected in parallel with the at least one series resonator. The at least one series resonator and the inductor generate a first attenuation pole at a frequency equal to or lower than a frequency band defined by the at least one series resonator and the at least one parallel resonator. The first attenuation pole is located at a frequency that is equal to or higher than a resonance frequency of a parallel resonator that is included in the at least one parallel resonator and has a highest resonance frequency and that is equal to or lower than a high-frequency end of the pass band.

Abstract translation: 梯形滤波器包括串联连接在输入端和输出端之间的至少一个串联谐振器，与至少一个串联谐振器并联连接的至少一个并联谐振器，以及与至少一个串联谐振器并联连接的电感器 。 所述至少一个串联谐振器和所述电感器以等于或低于由所述至少一个串联谐振器和所述至少一个并联谐振器限定的频带的频率产生第一衰减极点。 第一衰减极点位于等于或高于包括在至少一个并联谐振器中并具有最高谐振频率并且等于或低于高谐振频率的并联谐振器的谐振频率的频率， 通频带的频率端。

公开(公告)号：US20120274421A1

公开(公告)日：2012-11-01

申请号：US13482103

申请日：2012-05-29

Applicant: Motoaki HARA ,  Jun TSUTSUMI ,  Shogo INOUE ,  Masafumi IWAKI ,  Masanori UEDA

Inventor： Motoaki HARA ,  Jun TSUTSUMI ,  Shogo INOUE ,  Masafumi IWAKI ,  Masanori UEDA

IPC: H03H9/64

CPC classification number: H03H7/38 ,  H03H9/0028 ,  H03H9/009 ,  H03H9/0222 ,  H03H9/0576 ,  H03H9/725

Abstract: A filter includes at least one series resonator and parallel resonators, the at least one series resonator and the parallel resonators including excitation electrodes and reflectors, the parallel resonators having different resonance frequencies, and at least one of the parallel resonators other than the parallel resonator having the highest resonance frequency being configured to have a pitch of reflectors that is smaller than that of excitation electrodes.

Abstract translation: 滤波器包括至少一个串联谐振器和并联谐振器，所述至少一个串联谐振器和并联谐振器包括激励电极和反射器，并联谐振器具有不同的谐振频率，并且并联谐振器中的至少一个并联谐振器具有 最高谐振频率被配置为具有比激励电极小的反射器的间距。

公开(公告)号：US08279021B2

公开(公告)日：2012-10-02

申请号：US13364075

申请日：2012-02-01

Applicant: Motoaki Hara ,  Jun Tsutsumi ,  Shogo Inoue ,  Masafumi Iwaki ,  Masanori Ueda

Inventor： Motoaki Hara ,  Jun Tsutsumi ,  Shogo Inoue ,  Masafumi Iwaki ,  Masanori Ueda

IPC: H03H9/00 ,  H03H9/205

CPC classification number: H03H9/568 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725

Abstract: A duplexer with a reduced filter loss is provided. The duplexer includes two or more filters F1 and F2 that are connected to a common terminal and that have different passbands. At least one of the filters F1 and F2 includes a plurality of series resonators S1 to Sn connected in series to a path between an input terminal and an output terminal of the filter, and parallel resonators P1 to Pm connected in parallel to the above-mentioned path. An inductance L1 is connected in parallel to at least one of the series resonators, and the series resonator S1 having the inductance L1 connected in parallel thereto is divided into a plurality of resonators S11 to S13 connected in series.

Abstract translation: 提供了一种降低滤波器损耗的双工器。 双工器包括连接到公共端并且具有不同通带的两个或更多个滤波器F1和F2。 滤波器F1和F2中的至少一个包括与滤波器的输入端子和输出端子之间的路径串联连接的多个串联谐振器S1至Sn，以及与上述并联连接的并联谐振器P1至Pm 路径。 电感L1与串联谐振器中的至少一个并联连接，具有并联连接的电感L1的串联谐振器S1被分成串联连接的多个谐振器S11〜S13。