专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US06351196B1 Surface acoustic wave filter and multistage surface acoustic wave filter 有权
标题翻译：表面声波滤波器和多级表面声波滤波器
公开(公告)号：US06351196B1
公开(公告)日：2002-02-26
申请号：US09390653
申请日：1999-09-07
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
IPC分类号： H03H964
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： Disclosed is a surface acoustic wave filter on a piezoelectric substrate. The filter includes at least two surface acoustic wave resonators that each has a reflector electrode on both sides of an IDT electrode as an inter-digital transducer electrode. At least two of the resonators are disposed on a piezoelectric substrate in positions near each other so that the propagation direction of surface acoustic waves are in parallel to make an acoustic coupling. In an embodiment, the acoustic coupling is a direct coupling. The IDT electrode has a plurality of electrode fingers connected so as not to cancel respective electric charges. The IDT electrode is constituted by at least three divisional IDT electrodes. A pair of the electrode fingers can have a reverse phase relation with respect to each other. Also, in a multi-stage surface acoustic wave filter, the electrode fingers can be included in an upper IDT electrode of a top stage of the filter, and in a lower IDT electrode of a bottom stage of such filter.
摘要翻译：公开了压电基板上的表面声波滤波器。滤波器包括至少两个表面声波谐振器，每个表面声波谐振器在IDT电极的两侧上具有作为数字间换能器电极的反射器电极。至少两个谐振器在彼此相邻的位置处设置在压电基板上，使得声表面波的传播方向平行以形成声耦合。在一个实施例中，声耦合是直接耦合。 IDT电极具有连接成不抵消各自的电荷的多个电极指。 IDT电极由至少三个分开的IDT电极构成。一对电极指可以相对于彼此具有反相位关系。此外，在多级表面声波滤波器中，电极指可以包括在过滤器的顶级的上部IDT电极中，并且可以包括在该过滤器的底部的下部IDT电极中。

42. 发明授权

US06348845B2 Surface acoustic wave filter and multistage surface acoustic wave filter 有权
标题翻译：表面声波滤波器和多级表面声波滤波器
公开(公告)号：US06348845B2
公开(公告)日：2002-02-19
申请号：US09794035
申请日：2001-02-28
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
IPC分类号： H03H964
CPC分类号： H03H9/6479 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6443 , H03H9/6463
摘要： A surface acoustic wave resonator is constituted by an IDT electrode and reflector electrodes disposed on both sides thereof, on a piezoelectric substrate. Two of said surface acoustic wave resonators are disposed nearby so that the propagation directions of the respective surface acoustic waves are in parallel to each other to make acoustic couple to constitute a surface acoustic wave filter having plural exciting modes with different propagation frequencies. The bus bar electrodes of each of two IDT electrodes are electrically separated from each other, and the leading out electrodes led out from at least two spots on those bus bar electrodes are electrically connected to each other, by which one side of the balanced input and output terminal. As a result, the electrode resistance of the IDT electrode is alleviated to make the insertion loss less.
摘要翻译：表面声波谐振器由压电基板上的IDT电极和设置在其两侧的反射器电极构成。两个所述表面声波谐振器被设置在附近，使得各声表面波的传播方向彼此平行，以使声耦合构成具有不同传播频率的多个激励模式的表面声波滤波器。两个IDT电极中的每一个的汇流条电极彼此电分离，并且从那些汇流条电极上的至少两个点引出的引出电极彼此电连接，平衡输入的一侧和输出端子。结果，减轻了IDT电极的电极电阻，使插入损耗减小。

43. 发明授权

US06310525B1 Dielectric laminated device and its manufacturing method 有权
标题翻译：电介质层压装置及其制造方法
公开(公告)号：US06310525B1
公开(公告)日：2001-10-30
申请号：US09357091
申请日：1999-07-19
申请人： Hideaki Nakakubo , Toshio Ishizaki , Toru Yamada , Hiroshi Kagata , Tatsuya Inoue , Shoichi Kitazawa
发明人： Hideaki Nakakubo , Toshio Ishizaki , Toru Yamada , Hiroshi Kagata , Tatsuya Inoue , Shoichi Kitazawa
IPC分类号： H01P1203
CPC分类号： H01P7/084 , H01P1/203 , H01P1/20345 , H01P11/008 , Y10T29/435 , Y10T29/49126 , Y10T29/49128 , Y10T29/49155 , Y10T29/4916
摘要： By using a method for manufacturing a dielectric laminated device, an opening is formed on a first dielectric sheet, a strip line and an input and output line including an input and output electrode are formed by burying electrode materials in said opening, the first dielectric sheet is laminated with the second and third dielectric sheets disposed above and below respectively to form a laminate, a first and second shield electrodes and a ground electrode are formed, an end of the strip line is connected to the ground electrode, the first shield electrode and the second shield electrode are mutually connected through the ground electrode, and the input and output electrode is exposed along the line direction of the strip line. By this constitution of the above dielectric laminated device, the mounting reliability of the dielectric laminated device can be further increased.
摘要翻译：通过使用电介质层压装置的制造方法，在第一电介质片，带状线和包括输入和输出电极的输入和输出线上形成开口，通过在所述开口中埋入电极材料形成第一电介质片层叠有分别设置在上下的第二和第三电介质片以形成层叠体，形成第一和第二屏蔽电极和接地电极，带状线的一端连接到接地电极，第一屏蔽电极和第二屏蔽电极通过接地电极相互连接，并且输入和输出电极沿着带状线的线方向露出。通过上述电介质层叠装置的结构，能够进一步提高电介质层叠装置的安装可靠性。

44. 发明授权

US06177853B1 Multilayer filter with electrode patterns connected on different side surfaces to side electrodes and input/output electrodes 有权
标题翻译：多层滤波器，电极图案连接在不同的侧面与侧面电极和输入/输出电极
公开(公告)号：US06177853B1
公开(公告)日：2001-01-23
申请号：US09142350
申请日：1998-09-08
申请人： Yoshitaka Nagatomi , Naoki Yuda , Toshio Ishizaki , Shoichi Kitazawa , Toru Yamada
发明人： Yoshitaka Nagatomi , Naoki Yuda , Toshio Ishizaki , Shoichi Kitazawa , Toru Yamada
IPC分类号： H01P1203
CPC分类号： H01P1/20345
摘要： A small multilayer filter, in which a phase shifter may be constituted without increasing overall size of the filter. The overall size may be reduced without deteriorating the characteristics. Above the open end of a plurality of strip lines 4A provided on a dielectric layer 4, a coupling sector 3A of input/output pattern is placed to face it with a dielectric layer 3 interposed. An inductance L1, L2 is formed by connecting a side electrode 7A, 7B with a continuity sector 3B of input/output pattern; and said side electrode 7A, 7B with an input electrode 8A, output electrode 8B, respectively, by means of an electrode pattern 5A.
摘要翻译：可以在不增加滤波器的总体尺寸的情况下构成移相器的小型多层滤波器。总体尺寸可以降低，而不会降低特性。在设置在电介质层4上的多条带状线4A的开口端之上，输入/输出图案的耦合扇区3A被放置成与介质层3相对置。通过将侧面电极7A，7B与输入/输出图案的连续性部分3B连接形成电感L1，L2; 和所述侧电极7A，7B分别通过电极图案5A分别具有输入电极8A，输出电极8B。

45. 发明授权

US5990762A Surface acoustic wave filter and multistage filter with multiple inside busbar lead-out electrodes 失效
标题翻译：表面声波滤波器和具有多个内部母线引出电极的多级滤波器
公开(公告)号：US5990762A
公开(公告)日：1999-11-23
申请号：US862383
申请日：1997-05-23
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
IPC分类号： H03H9/00 , H03H9/02 , H03H9/64
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02992 , H03H9/14588 , H03H9/6463 , H03H9/6479 , H03H9/02913 , H03H9/14597
摘要： A surface acoustic wave resonator is constituted by an IDT electrode and reflector electrodes disposed on both sides thereof, on a piezoelectric substrate. Two of said surface acoustic wave resonators are disposed nearby so that the propagation directions of the respective surface acoustic waves are in parallel to each other to make acoustic couple to constitute a surface acoustic wave filter having plural exciting modes with different propagation frequencies. The bus bar electrodes of each of two IDT electrodes are electrically separated from each other, and the leading out electrodes led out from at least two spots on those bus bar electrodes are electrically connected to each other, by which one side of the balanced input and output terminal. As a result, the electrode resistance of the IDT electrode is alleviated to make the insertion loss less.
摘要翻译：表面声波谐振器由压电基板上的IDT电极和设置在其两侧的反射器电极构成。两个所述表面声波谐振器被设置在附近，使得各声表面波的传播方向彼此平行，以使声耦合构成具有不同传播频率的多个激励模式的表面声波滤波器。两个IDT电极中的每一个的汇流条电极彼此电分离，并且从那些汇流条电极上的至少两个点引出的引出电极彼此电连接，平衡输入的一侧和输出端子。结果，减轻了IDT电极的电极电阻，使插入损耗减小。

46. 发明授权

US07109531B2 High frequency switch, two-band type high frequency switch, three-band type high frequency switch, and mobile communication equipment 有权
标题翻译：高频开关，双频段高频开关，三频段高频开关和移动通信设备
公开(公告)号：US07109531B2
公开(公告)日：2006-09-19
申请号：US10975155
申请日：2004-10-28
申请人： Shoichi Kitazawa , Masaharu Tanaka , Toshio Ishizaki , Toru Yamada
发明人： Shoichi Kitazawa , Masaharu Tanaka , Toshio Ishizaki , Toru Yamada
IPC分类号： H01L29/74
CPC分类号： H01P1/15 , H01L2924/0002 , H01L2924/00
摘要： A high frequency switch, has a transmitting terminal, a receiving terminal, an antenna terminal, a first diode having an anode electrically connected to the transmitting terminal and a cathode electrically connected to the antenna terminal, a second diode having an anode connected through a transmission line of ¼ wavelength to the antenna terminal which is electrically connected to the receiving terminal, and having the side of a cathode grounded, and a control terminal provided to a node between the transmitting terminal and the first anode. The first and second diodes have a tradeoff relationship between ON resistance thereof and capacitance between the anode and the cathode, and the ON resistance of the first diode is lower than the ON resistance of the second diode, and the capacitance of the second diode in the OFF state is smaller than the capacitance of the first diode in the OFF state.
摘要翻译：一种高频开关，具有发送端子，接收端子，天线端子，具有与发送端子电连接的阳极的第一二极管和与天线端子电连接的阴极，具有通过透射器连接的阳极的第二二极管与连接到接收端子的电气连接的天线端子的1/4波长的线路，并且阴极侧接地，以及设置在发送端子和第一阳极之间的节点的控制端子。第一和第二二极管在其导通电阻和阳极和阴极之间的电容之间具有折衷关系，并且第一二极管的导通电阻低于第二二极管的导通电阻，并且第二二极管的电容在 OFF状态小于第一二极管处于OFF状态的电容。

47. 发明授权

US06608534B2 Matching circuit chip, filter with matching circuit, duplexer and cellular phone 失效
公开(公告)号：US06608534B2
公开(公告)日：2003-08-19
申请号：US09986674
申请日：2001-11-09
申请人： Hiroshi Kushitani , Toru Yamada , Naoki Yuda , Toshio Ishizaki , Hideaki Nakakubo , Makoto Fujikawa
发明人： Hiroshi Kushitani , Toru Yamada , Naoki Yuda , Toshio Ishizaki , Hideaki Nakakubo , Makoto Fujikawa
IPC分类号： H01D1213
CPC分类号： H01P1/2135 , H01P1/2039 , H01P5/02
摘要： The present matching circuit chip has an integrated shape comprising a first transmission line, a second transmission line and a third transmission line, wherein one end of the first transmission line, one end of the second transmission line and one end of the third transmission line are connected to one another, a first filter connection terminal is connected to the other end of the first transmission line, an antenna terminal is connected to the other end of the second transmission line, and a second filter connection terminal is connected to the other end of the third transmission line, whereby the second transmission line converts the characteristic impedances of the first and third transmission lines so that the impedance matching between the antenna terminal and the first filter connection terminal can be attained, and so that the impedance matching between the antenna terminal and the second filter connection terminal can be attained.

48. 发明授权

US06608533B2 Matching circuit chip, filter with matching circuit, duplexer and cellular phone 失效
公开(公告)号：US06608533B2
公开(公告)日：2003-08-19
申请号：US09918828
申请日：2001-08-01
申请人： Hiroshi Kushitani , Toru Yamada , Naoki Yuda , Toshio Ishizaki , Hideaki Nakakubo , Makoto Fujikawa
发明人： Hiroshi Kushitani , Toru Yamada , Naoki Yuda , Toshio Ishizaki , Hideaki Nakakubo , Makoto Fujikawa
IPC分类号： H01P1213
CPC分类号： H01P1/2135 , H01P1/2039 , H01P5/02
摘要： The present matching circuit chip has an integrated shape comprising a first transmission line, a second transmission line and a third transmission line, wherein one end of the first transmission line, one end of the second transmission line and one end of the third transmission line are connected to one another, a first filter connection terminal is connected to the other end of the first transmission line, an antenna terminal is connected to the other end of the second transmission line, and a second filter connection terminal is connected to the other end of the third transmission line, whereby the second transmission line converts the characteristic impedances of the first and third transmission lines so that the impedance matching between the antenna terminal and the first filter connection terminal can be attained, and so that the impedance matching between the antenna terminal and the second filter connection terminal can be attained.

49. 发明授权

US06586786B2 High frequency switch and mobile communication equipment 有权
标题翻译：高频开关和移动通信设备
公开(公告)号：US06586786B2
公开(公告)日：2003-07-01
申请号：US10032856
申请日：2001-12-27
申请人： Shoichi Kitazawa , Masaharu Tanaka , Toshio Ishizaki , Toru Yamada
发明人： Shoichi Kitazawa , Masaharu Tanaka , Toshio Ishizaki , Toru Yamada
IPC分类号： H01L2980
CPC分类号： H01P1/15 , H01L2924/0002 , H01L2924/00
摘要： A high frequency switch, has a transmitting terminal; a receiving terminal; an antenna terminal; a first diode having an anode electrically connected to the transmitting terminal and a cathode electrically connected to the antenna terminal; a second diode having an anode connected through a transmission line of ¼ wavelength to the antenna terminal which is electrically connected to the receiving terminal, and having the side of a cathode grounded; and a control terminal provided to a node between the transmitting terminal and the first anode, wherein the first and second diodes have a tradeoff relationship between ON resistance thereof and capacitance between the anode and the cathode, and the ON resistance of the first diode is lower than the ON resistance of the second diode, and the capacitance of the second diode in the OFF state is smaller than the capacitance of the first diode in the OFF state.
摘要翻译：高频开关，发射端子，接收端子，天线端子，第一二极管，具有与发射端子电连接的阳极和与天线端子电连接的阴极;第二二极管，具有通过传输线连接的阳极对天线端子的1/4波长，电连接到接收端子，并且阴极侧接地; 以及提供给发送端子和第一阳极之间的节点的控制端子，其中第一和第二二极管在其导通电阻和阳极和阴极之间的电容之间具有折衷关系，并且第一二极管的导通电阻低于第二二极管的导通电阻和第二二极管在OFF状态下的电容小于第一二极管在OFF状态下的电容。

50. 发明授权

US06445266B1 Multilayer filter having varied dielectric constant regions 失效
标题翻译：具有不同介电常数区域的多层滤光片
公开(公告)号：US06445266B1
公开(公告)日：2002-09-03
申请号：US10041262
申请日：2001-10-25
申请人： Yoshitaka Nagatomi , Naoki Yuda , Toshio Ishizaki , Shoichi Kitazawa , Toru Yamada
发明人： Yoshitaka Nagatomi , Naoki Yuda , Toshio Ishizaki , Shoichi Kitazawa , Toru Yamada
IPC分类号： H01P1203
CPC分类号： H01P1/20345
摘要： A small multilayer filter, in which a phase shifter may be constituted without increasing overall size of the filter. The overall size may be reduced without deteriorating the characteristics. Above the open end of a plurality of strip lines 4A provided on a dielectric layer 4, a coupling sector 3A of input/output pattern is placed to face it with a dielectric layer 3 interposed. An inductance L1, L2 is formed by connecting a side electrode 7A, 7B with a continuity sector 3B of input/output pattern; and said side electrode 7A, 7B with an input electrode 8A, output electrode 8B, respectively, by means of an electrode pattern 5A.
摘要翻译：可以在不增加滤波器的总体尺寸的情况下构成移相器的小型多层滤波器。总体尺寸可以降低，而不会降低特性。在设置在电介质层4上的多条带状线4A的开口端之上，输入/输出图案的耦合扇区3A被放置成与介质层3相对置。通过将侧面电极7A，7B与输入/输出图案的连续性部分3B连接形成电感L1，L2; 和所述侧电极7A，7B分别通过电极图案5A分别具有输入电极8A，输出电极8B。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式