-
1.发明授权Saw filter antenna sharing device using the same, and mobile communication terminal using the same 失效使用相同的过滤器天线共用装置，以及使用相同的移动通信终端公开(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：US06310422B1
公开(公告)日：2001-10-30
申请号：US09423772
申请日：2000-02-28
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。
-
3.发明授权Surface acoustic wave filter utilizing a transmission line with phase characteristics that increase filter out of band attenuation 失效利用具有增加滤波器带外衰减的相位特性的传输线的表面声波滤波器公开(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
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：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
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：US07629862B2
公开(公告)日：2009-12-08
申请号：US11568772
申请日：2006-05-19
申请人： Yuki Satoh , Naoki Yuda , Koji Hashimoto , Toshio Ishizaki
发明人： Yuki Satoh , Naoki Yuda , Koji Hashimoto , Toshio Ishizaki
摘要： A composite duplexer includes an antenna terminal, a first receiving terminal, a second receiving terminal, a transmitting terminal, a first switch, a duplexer, and a second switch. The first switch includes a first branch contact, a second branch contact connected with the transmitting terminal, a third branch contact connected with the second receiving terminal, and a first common contact connected with the first antenna terminal. The first common contact of the first switch is connected selectively with the first branch contact, the second branch contact, and the third branch contact. The first duplexer includes a first receiving filter connected with the first receiving terminal, and a first transmitting filter. The duplexer is connected with the first branch contact of the first switch. The second switch is operable to connect and disconnect electrically between the first transmitting filter of the first duplexer and the transmitting terminal. This composite duplexer can separate signals even if their frequency bands are close to each other.
摘要翻译： 复合双工器包括天线端子，第一接收端子，第二接收端子，发送端子，第一开关，双工器和第二开关。 第一开关包括第一分支触点，与发送端子连接的第二分支触点，与第二接收端子连接的第三分支触点，以及与第一天线端子连接的第一公共触点。 第一开关的第一公共接点与第一分支触点，第二分支触点和第三分支触点选择性地连接。 第一双工器包括与第一接收端连接的第一接收滤波器和第一发射滤波器。 双工器与第一开关的第一分支触点连接。 第二开关可操作以在第一双工器的第一发射滤波器和发射端之间电连接和断开。 即使它们的频带彼此接近，该复合双工器也可以分离信号。
-
公开(公告)号：US20090256645A1
公开(公告)日：2009-10-15
申请号：US11568772
申请日：2006-05-19
申请人： Yuki Satoh , Naoki Yuda , Koji Hashimoto , Toshio Ishizaki
发明人： Yuki Satoh , Naoki Yuda , Koji Hashimoto , Toshio Ishizaki
IPC分类号： H03H7/46
摘要： A composite duplexer includes an antenna terminal, a first receiving terminal, a second receiving terminal, a transmitting terminal, a first switch, a duplexer, and a second switch. The first switch includes a first branch contact, a second branch contact connected with the transmitting terminal, a third branch contact connected with the second receiving terminal, and a first common contact connected with the first antenna terminal. The first common contact of the first switch is connected selectively with the first branch contact, the second branch contact, and the third branch contact. The first duplexer includes a first receiving filter connected with the first receiving terminal, and a first transmitting filter. The duplexer is connected with the first branch contact of the first switch. The second switch is operable to connect and disconnect electrically between the first transmitting filter of the first duplexer and the transmitting terminal. This composite duplexer can separate signals even if their frequency bands are close to each other.
摘要翻译： 复合双工器包括天线端子，第一接收端子，第二接收端子，发送端子，第一开关，双工器和第二开关。 第一开关包括第一分支触点，与发送端子连接的第二分支触点，与第二接收端子连接的第三分支触点，以及与第一天线端子连接的第一公共触点。 第一开关的第一公共接点与第一分支触点，第二分支触点和第三分支触点选择性地连接。 第一双工器包括与第一接收端连接的第一接收滤波器和第一发射滤波器。 双工器与第一开关的第一分支触点连接。 第二开关可操作以在第一双工器的第一发射滤波器和发射端之间电连接和断开。 即使它们的频带彼此接近，该复合双工器也可以分离信号。
-
公开(公告)号：US07084825B2
公开(公告)日：2006-08-01
申请号：US10515965
申请日：2003-12-22
申请人： Misako Sakae , Naoki Yuda , Yuki Satoh , Tsutomu Inuzuka
发明人： Misako Sakae , Naoki Yuda , Yuki Satoh , Tsutomu Inuzuka
IPC分类号： H01Q7/08
摘要： An antenna capable of attaining the miniaturization thereof and the widening of a band in use, and an electronic device containing this antenna therein, having a miniaturized structure and adaptable to a wide band. This antenna is provided with a feeding element having a feeder end, an antenna core provided with the feeding element on an outer circumference thereof, a feeder lead connected to the feeder end, and a magnetic member covering the feeder end. This electronic device is provided with the antenna, a transmission system, and a reception system, and the feeder lead of the antenna is connected to at least one of the transmission system and reception system.
摘要翻译： 能够实现其小型化的天线和使用中的频带的扩大以及其中包含该天线的电子设备，其具有小型化结构并且能够适应于宽带。 该天线设置有馈电元件，馈电元件具有馈电端，天线芯在其外圆周上设置有馈电元件，馈电线连接到馈线端，以及磁性元件覆盖馈线端。 该电子设备设置有天线，传输系统和接收系统，并且天线的馈线连接到传输系统和接收系统中的至少一个。
-
-
-
-
-
-
-
-
-
搜索结果
68 条记录 (耗时 0.024 秒)
