公开(公告)号：US06404302B1

公开(公告)日：2002-06-11

申请号：US09600233

申请日：2000-09-05

申请人： Yuki Satoh ,  Toru Sakuragawa ,  Kozo Murakami

发明人： Yuki Satoh ,  Toru Sakuragawa ,  Kozo Murakami

IPC分类号： H03H964

CPC分类号： H03H9/6483

摘要： The present invention relates to a surface acoustic wave (SAW) filter which is used for cellular phones and other mobile communication equipment. The object of the present invention is to realize a SAW filter of which attenuation characteristics and pass characteristics can be set arbitrarily. The SAW filter of the present invention comprises comb-shaped electrodes facing each other disposed on the same piezoelectric substrate, at least two resonators with an input and output terminals, and an equivalent transmission line which is connected between an output terminal of a first resonator and an input terminal of a second resonator. The phase of the transmission line can be adjusted from 5 degrees to 175 degrees arbitrarily at the series resonance frequency of the resonators. This structure realizes a band-stop filter or a band-pass filter whose attenuation characteristics and pass characteristics can be set arbitrarily.

摘要翻译： 本发明涉及一种用于蜂窝电话和其他移动通信设备的声表面波（SAW）滤波器。 本发明的目的是实现可以任意设定衰减特性和通过特性的SAW滤波器。 本发明的SAW滤波器包括设置在同一压电基片上的彼此相对的梳状电极，至少两个具有输入和输出端子的谐振器和连接在第一谐振器的输出端子和 第二谐振器的输入端。 传输线的相位可以在共振器的串联谐振频率下任意调整为5度至175度。 该结构实现了可以任意设定衰减特性和通过特性的带阻滤波器或带通滤波器。

公开(公告)号：US06891449B2

公开(公告)日：2005-05-10

申请号：US10087275

申请日：2002-03-01

申请人： Ryoichi Takayama ,  Tetsuo Kawasaki ,  Yuki Satoh ,  Kozo Murakami ,  Toru Sakuragawa

发明人： Ryoichi Takayama ,  Tetsuo Kawasaki ,  Yuki Satoh ,  Kozo Murakami ,  Toru Sakuragawa

IPC分类号： H01P1/213 ,  H03H7/19 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H03H9/72 ,  H04B1/50

CPC分类号： H03H9/6483 ,  H03H7/19

摘要： An antenna duplexer has a power durability to a signal input from an antenna terminal and has stable characteristics. The antenna duplexer includes an input terminal, a transmission filter including a surface acoustic wave (SAW) filter having an input port connected to the input terminal, a phase shifter having an input port connected to an output port of the transmission filter, a reception filter having an input port connected to an output port of the phase shifter, an output terminal connected to the output port of the reception filter, and an antenna terminal connected between the transmission filter and the phase shifter. The transmission filter has a power durability at the output port of the filter, being equal to or larger than a power durability at the input port of the filter.

摘要翻译： 天线双工器具有对从天线端子输入的信号的功率耐久性，并具有稳定的特性。 天线双工器包括输入端子，包括具有连接到输入端子的输入端口的表面声波滤波器的发送滤波器，具有连接到发送滤波器的输出端口的输入端口的移相器，接收滤波器 具有连接到移相器的输出端口的输入端口，连接到接收滤波器的输出端口的输出端子以及连接在发送滤波器和移相器之间的天线端子。 传动过滤器在过滤器的输出端口处具有等于或大于过滤器的输入端口处的功率耐久性的功率耐久性。

公开(公告)号：US06759924B2

公开(公告)日：2004-07-06

申请号：US10049257

申请日：2002-06-14

申请人： Toru Sakuragawa ,  Yuki Satoh ,  Kozo Murakami ,  Ryoichi Takayama

发明人： Toru Sakuragawa ,  Yuki Satoh ,  Kozo Murakami ,  Ryoichi Takayama

IPC分类号： H01L4100

CPC分类号： H03H9/706 ,  H03H9/0571 ,  H03H9/0576 ,  H03H9/72 ,  H03H9/725 ,  H03H2250/00

摘要： A small-sized multi-frequency antenna duplexer using surface acoustic wave filters to be applicable to a plurality of frequencies. This antenna duplexer includes two surface acoustic wave (SAW) filters for transmission and reception having passing bands of mutually different frequencies, a phase shift substrate, and a package for accommodating them. The passing band of each antenna duplexer is mutually different from other's passing band. This multi-frequency antenna duplexer includes a plurality of antenna duplexers. In one package, transmitter surface acoustic wave filters, receiver surface acoustic filters, and phase shift substrates are mounted. Thus, the multi-frequency antenna duplexer are reduced in size.

摘要翻译： 使用表面声波滤波器适用于多个频率的小型多频天线双工器。 该天线双工器包括用于具有相互不同频率的通带的发射和接收的两个表面声波（SAW）滤波器，相移衬底和用于容纳它们的封装。 每个天线双工器的通带与其他通带相互不同。 该多频天线双工器包括多个天线双工器。 在一个封装中，安装了发射器表面声波滤波器，接收器表面声学滤波器和相移衬底。 因此，多频天线双工器的尺寸减小。

公开(公告)号：US06445261B1

公开(公告)日：2002-09-03

申请号：US09463113

申请日：2000-04-13

申请人： Naoki Yuda ,  Toru Sakuragawa ,  Ryouichi Takayama ,  Kozo Murakami ,  Yuki Satoh

发明人： Naoki Yuda ,  Toru Sakuragawa ,  Ryouichi Takayama ,  Kozo Murakami ,  Yuki Satoh

IPC分类号： H03H964

CPC分类号： H03H9/6483 ,  H03H7/19

摘要： The invention relates to a SAW filter, an antenna duplexer using the same, and a mobile communication terminal using the same, and assures a high withstanding power characteristic and a sufficient isolation between transmitting terminal and receiving terminal. The invention relates to a ladder-type SAW filter composed by alternately connecting a serial branch having at least one SAW resonator connected in series to a signal path, and a parallel branch having at least one SAW resonator connected between the signal path and the ground, in which the sizes of wiring patterns of the parallel branch are smaller than wiring patterns of the serial branch. Therefore, in the case of the serial-branch input type, inductive components of the parallel-branch wiring patterns can be decreased, so that a large reflection coefficient may be obtained in the rejection band.

摘要翻译： 本发明涉及一种SAW滤波器，使用该SAW滤波器的天线双工器以及使用该SAW滤波器的移动通信终端，并且确保了高承受功率特性和发射终端与接收终端之间的充分隔离。本发明涉及一种梯型 SAW滤波器通过交替地连接具有串联连接到信号路径的至少一个SAW谐振器的串行支路和具有连接在信号路径和地之间的至少一个SAW谐振器的并联支路构成，其中布线图案的尺寸 并联支路小于串行支路的布线图形。 因此，在串联输入型的情况下，可以减小并联支路布线图案的电感分量，从而可以在拒绝频带中获得大的反射系数。

公开(公告)号：US20050062559A1

公开(公告)日：2005-03-24

申请号：US10940577

申请日：2004-09-14

申请人： Koji Seo ,  Tetsuro Shimamura ,  Toru Sakuragawa ,  Hiroshi Kushitani ,  Yuki Satoh

发明人： Koji Seo ,  Tetsuro Shimamura ,  Toru Sakuragawa ,  Hiroshi Kushitani ,  Yuki Satoh

IPC分类号： H03H9/02 ,  H03H9/05 ,  H03H9/10 ,  H03H9/145 ,  H03H9/64

CPC分类号： H03H9/1071 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48237 ,  H01L2224/49109 ,  H01L2924/16195 ,  H03H9/02913 ,  H03H9/058 ,  H01L2924/00014

摘要： A surface acoustic wave filter with little electromagnetic coupling between wires and improved attenuation characteristics is provided. This surface acoustic wave filter comprises: a package having a concavity in the shape of stairs made by laminating dielectrics, a surface acoustic wave element provided on the bottom face of the concavity, a plurality of wires for connecting between a plurality of electrodes provided on the surface of the surface acoustic wave element and a plurality of electrodes provided on one same plane portion of the stairs of the package in correspondence to a plurality of electrodes, and a dummy wire provided between the wires.

摘要翻译： 提供了一种具有很少的电线耦合和改进的衰减特性的表面声波滤波器。 该表面声波滤波器包括：具有通过层叠电介质的楼梯形状的凹部的封装，设置在凹部的底面上的表面声波元件，用于连接设置在凹部上的多个电极之间的多根导线 表面声波元件的表面和与多个电极相对应地设置在封装的楼梯的同一平面部分上的多个电极，以及设置在电线之间的虚拟线。

公开(公告)号：US07106150B2

公开(公告)日：2006-09-12

申请号：US10940577

申请日：2004-09-14

申请人： Koji Seo ,  Tetsuro Shimamura ,  Toru Sakuragawa ,  Hiroshi Kushanti ,  Yuki Satoh

发明人： Koji Seo ,  Tetsuro Shimamura ,  Toru Sakuragawa ,  Hiroshi Kushanti ,  Yuki Satoh

IPC分类号： H03H9/00 ,  H01L41/047

CPC分类号： H03H9/1071 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48237 ,  H01L2224/49109 ,  H01L2924/16195 ,  H03H9/02913 ,  H03H9/058 ,  H01L2924/00014

摘要： A surface acoustic wave filter with little electromagnetic coupling between wires and improved attenuation characteristics is provided. This surface acoustic wave filter comprises: a package having a concavity in the shape of stairs made by laminating dielectrics, a surface acoustic wave element provided on the bottom face of the concavity, a plurality of wires for connecting between a plurality of electrodes provided on the surface of the surface acoustic wave element and a plurality of electrodes provided on one same plane portion of the stairs of the package in correspondence to a plurality of electrodes, and a dummy wire provided between the wires.

摘要翻译： 提供了一种具有很少的电线耦合和改进的衰减特性的表面声波滤波器。 该表面声波滤波器包括：具有通过层叠电介质的楼梯形状的凹部的封装，设置在凹部的底面上的表面声波元件，用于连接设置在凹部上的多个电极之间的多根导线 表面声波元件的表面和与多个电极相对应地设置在封装的楼梯的同一平面部分上的多个电极，以及设置在电线之间的虚拟线。

公开(公告)号：US06310422B1

公开(公告)日：2001-10-30

申请号：US09423772

申请日：2000-02-28

申请人： Yuki Satoh ,  Toru Sakuragawa ,  Mitsuhiro Furukawa ,  Ryouichi Takayama

发明人： Yuki Satoh ,  Toru Sakuragawa ,  Mitsuhiro Furukawa ,  Ryouichi Takayama

IPC分类号： H03H925

CPC分类号： H03H9/1071 ,  H03H9/08 ,  H03H9/6483

摘要： The present invention relates to a surface acoustic wave filter used in frequency filter of portable telephone and other mobile communication device, and is intended to realize a surface acoustic wave filter capable of obtaining a stable filter characteristic even in the event of input of a large signal. The invention includes resonators (5) to (8) formed on a piezoelectric substrate (3), through-holes (12) provided near the resonators (5) to (8), and a conductive material (13) filling up the through-holes (12), in which the through-holes (12) filled up with the conductive material (13) are electrically grounded. In this constitution, by the through-holes (12) provided near the resonators (5) to (8) and filled up with the conductive material (13), the heat generated in the resonators (5) to (8) when a large signal is applied to the input terminal (1) can be released, so that a stable filter characteristic may be maintained if a large signal is applied.

摘要翻译： 本发明涉及一种用于便携式电话和其他移动通信装置的频率滤波器中的表面声波滤波器，旨在实现即使在输入大信号的情况下也能够获得稳定的滤波特性的表面声波滤波器 。 本发明包括形成在压电基板（3）上的谐振器（5）至（8），设置在谐振器（5）至（8）附近的通孔（12）和填充通孔的导电材料（13） 其中填充有导电材料（13）的通孔（12）被电接地的孔（12）。 在这种结构中，通过设置在谐振器（5）至（8）附近并填充有导电材料（13）的通孔（12），当大的谐振器（5）至（8）中产生的热量 施加到输入端子（1）的信号可以被释放，使得如果施加大信号，则可以保持稳定的滤波器特性。

公开(公告)号：US06759925B2

公开(公告)日：2004-07-06

申请号：US10148702

申请日：2002-09-10

申请人： Yuki Satoh ,  Tetsuya Tsurunari ,  Kozo Murakami ,  Yoshiharu Omori ,  Masaaki Hayama

发明人： Yuki Satoh ,  Tetsuya Tsurunari ,  Kozo Murakami ,  Yoshiharu Omori ,  Masaaki Hayama

IPC分类号： H03H964

CPC分类号： H04B1/50 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2224/73204 ,  H01L2924/00014 ,  H01L2924/16152 ,  H01L2924/19105 ,  H04B1/406 ,  H04B1/48 ,  H01L2924/00 ,  H01L2224/0401

摘要： A small radio-frequency hybrid switch module is provided for switching between transmitted signals and received signals in plural frequency bands. This module includes: a laminated body including a dielectric layer; a diplexer; a switching circuit; a low pass filter (LPF); a conductive pattern provided on the dielectric layer for forming at least one of the diplexer, the switching circuit and the LPF; a surface acoustic wave (SAW) filter mounted on the laminated body; a cover provided on the SAW filter for forming a cavity which allows surface acoustic wave vibration and for hermetically sealing the cavity; and a semiconductor switching device mounted on the laminated body for forming a part of the switching circuit.

摘要翻译： 提供了一种小型射频混合开关模块，用于在多个频带中的发射信号和接收信号之间切换。 该模块包括：包括电介质层的层叠体; 双工器 开关电路; 低通滤波器（LPF）; 设置在电介质层上的用于形成双工器，开关电路和LPF中的至少一个的导电图案; 安装在层叠体上的表面声波（SAW）滤波器; 设置在所述SAW滤波器上用于形成空腔的盖，所述空腔允许表面声波振动并且用于气密地密封所述空腔; 以及安装在层叠体上用于形成开关电路的一部分的半导体开关装置。

公开(公告)号：US07035602B2

公开(公告)日：2006-04-25

申请号：US09913259

申请日：2000-12-14

申请人： Yuki Satoh ,  Tetsuya Tsurunari ,  Koji Hashimoto ,  Hiroshi Takahashi ,  Kozo Murakami

发明人： Yuki Satoh ,  Tetsuya Tsurunari ,  Koji Hashimoto ,  Hiroshi Takahashi ,  Kozo Murakami

IPC分类号： H01Q11/12

CPC分类号： H04B1/0057 ,  H01P1/15 ,  H04B1/406 ,  H04B1/48

摘要： A hybrid radio frequency (RF) switching device includes first to fourth ports, a diode coupled between the first port and second port, a first transmission line having a length of λg/4 (where λg is a wave length of a frequency in a first frequency band), and a first element coupled in series with the first transmission line having an almost simple reactance component and nearly opening in a second frequency band. The first transmission line and first element are coupled in series between the second port and third port. The device further includes a second transmission line having a length of λd/4 (where λd is a wavelength of a frequency in the second frequency band), and a second element having an almost simple reactance component and nearly opening in the first frequency band. The second transmission line and second element are coupled in series between the second port and fourth port.

摘要翻译： 混合射频（RF）开关装置包括第一至第四端口，耦合在第一端口和第二端口之间的二极管，具有长度lambdag / 4的第一传输线（其中lambdag是第一端口和第二端口中的频率的波长 频带），以及与第一传输线串联耦合的第一元件具有几乎简单的电抗分量并且在第二频带中几乎打开。 第一传输线和第一元件串联耦合在第二端口和第三端口之间。 该装置还包括具有长度lambdad / 4（其中lambdad是第二频带中的频率的波长）的第二传输线，以及具有几乎简单的电抗分量并且在第一频带中几乎打开的第二元件。 第二传输线和第二元件串联耦合在第二端口和第四端口之间。

公开(公告)号：US20080204323A1

公开(公告)日：2008-08-28

申请号：US10587599

申请日：2006-01-19

申请人： Akihiko Iguchi ,  Yuki Satoh

发明人： Akihiko Iguchi ,  Yuki Satoh

IPC分类号： H01Q1/38 ,  H01Q9/04

CPC分类号： H01Q9/0421 ,  H01Q1/38 ,  H01Q9/42

摘要： An antenna device includes a grounding board having an edge, and an antenna provided on the grounding board. The antenna includes a dielectric block having a top surface, a bottom surface, and a side surface, a radiator electrode provided on the top surface, a short-circuit electrode provided on the side surface. The radiator electrode includes a short-circuited end connected to the second end of the short-circuit electrode, and a portion extending from the short-circuited end and along the outer periphery of the top surface of the dielectric block. The portion of the radiator electrode has an open end located at the first side of the dielectric block. The side surface of the dielectric block is substantially flush with the edge of the grounding board. This antenna device improves radiation characteristics of the chip antenna and allowing a communication device to have a small size.

摘要翻译： 天线装置包括具有边缘的接地板和设置在接地板上的天线。 天线包括具有顶表面，底表面和侧表面的介质块，设置在顶表面上的散热器电极，设置在侧表面上的短路电极。 散热器电极包括连接到短路电极的第二端的短路端和从介电块的顶表面的短路端部和外周延伸的部分。 散热器电极的部分具有位于介质块的第一侧的开口端。 介质块的侧表面基本上与接地板的边缘齐平。 该天线装置改善了芯片天线的辐射特性，并允许通信装置具有小尺寸。