公开(公告)号：US06603372B1

公开(公告)日：2003-08-05

申请号：US09722734

申请日：2000-11-28

申请人： Toshio Ishizaki ,  Ikuo Awai ,  Hideyuki Miyake ,  Shoichi Kitazawa ,  Toru Yamada

发明人： Toshio Ishizaki ,  Ikuo Awai ,  Hideyuki Miyake ,  Shoichi Kitazawa ,  Toru Yamada

IPC分类号： H01P1203

CPC分类号： H01P1/2039

摘要： A notch filter made up from laminated dielectric, which attenuates a specific frequency of a signal to be transmitted, comprises two terminals for input or output a signal to be transmitted, a line connected between those terminals, two resonators each having one end connected to ground and an other end, two first coupling capacitors, and a second coupling capacitor. Each end of the line is connected to the other end of the resonator through the first capacitor. The second capacitor couples said two resonators each other.

摘要翻译： 由层叠电介质构成的陷波滤波器，其衰减要发送的信号的特定频率，包括用于输入或输出要发送的信号的两个端子，连接在这些端子之间的线路，两个谐振器各自具有一端连接到地 另一端，两个第一耦合电容器和第二耦合电容器。 线路的每一端通过第一电容器连接到谐振器的另一端。 第二电容器将所述两个谐振器彼此耦合。

公开(公告)号：US06577205B2

公开(公告)日：2003-06-10

申请号：US09964691

申请日：2001-09-28

申请人： Toshio Ishizaki ,  Toru Yamada

发明人： Toshio Ishizaki ,  Toru Yamada

IPC分类号： H03H1104

CPC分类号： H01P1/2135 ,  H01P1/2136

摘要： A high-frequency filter device includes at least one filter to be connected to a high-frequency stage of a wireless apparatus. The filter includes a voltage-controlled variable frequency resonance element which is made of a resonance element and a voltage-controlled variable impedance element electrically connected to the resonance element. The high-frequency filter device includes a control section for controlling a voltage applied to the variable impedance element, and a signal monitoring section for outputting a control signal, with which the voltage is controlled, to the control section based on frequency data as to an oscillating frequency of a local oscillator of the wireless apparatus. The signal monitoring section controls a band frequency of the at least one filter based on the frequency data in such a manner that the band frequency is adaptively changed.

摘要翻译： 高频滤波器装置包括至少一个要连接到无线装置的高频级的滤波器。 滤波器包括由谐振元件和电连接到谐振元件的压控可变阻抗元件构成的电压控制的可变频率谐振元件。 高频滤波器装置包括用于控制施加到可变阻抗元件上的电压的控制部分，以及信号监视部分，用于根据频率数据输出控制部分的电压被控制的控制信号 无线设备的本地振荡器的振荡频率。 信号监视部分以频带频率自适应地改变的方式，基于频率数据来控制至少一个滤波器的频带频率。

公开(公告)号：US06510607B1

公开(公告)日：2003-01-28

申请号：US09892259

申请日：2001-06-27

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： H01K300

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。

公开(公告)号：US06359531B1

公开(公告)日：2002-03-19

申请号：US09707307

申请日：2000-11-07

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的开口端上，输入/输出图案的耦合扇区3A被放置成与插入介质层3相对。 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。

公开(公告)号：US06304156B1

公开(公告)日：2001-10-16

申请号：US09379766

申请日：1999-08-24

申请人： Toshio Ishizaki ,  Atsushi Sasaki ,  Yuki Satoh ,  Hiroshi Kushitani ,  Hideaki Nakakubo ,  Toshiaki Nakamura ,  Kimio Aizawa ,  Takashi Fujino

发明人： Toshio Ishizaki ,  Atsushi Sasaki ,  Yuki Satoh ,  Hiroshi Kushitani ,  Hideaki Nakakubo ,  Toshiaki Nakamura ,  Kimio Aizawa ,  Takashi Fujino

IPC分类号： H01P1203

CPC分类号： H01P1/20345 ,  H01P1/20381 ,  H01P1/2056 ,  H01P1/2135

摘要： A dielectric antenna duplexer used in a high frequency radio device such as a portable telephone, and a dielectric filter for forming the duplexer of the SIR (stepped impedance resonator) composed by cascade connection of first transmission lines having one end grounded and second transmission lines having one end open and lower in characteristic impedance than in the first transmission lines, first transmission lines and second transmission lines are individually coupled in electromagnetic field, thereby forming an antenna duplexer and a dielectric filter of small insertion loss, high bandwidth selectivity, excellent band pass characteristic, and low cost.

摘要翻译： 在诸如便携式电话的高频无线电设备中使用的介质天线双工器和用于形成由具有一端接地的第一传输线和第二传输线的级联连接的SIR（阶梯式阻抗谐振器）的双工器的介质滤波器， 一端的特征阻抗比第一传输线的开路低，第一传输线和第二传输线分别在电磁场中耦合，从而形成一个天线双工器和介质滤波器，其插入损耗小，带宽选择性好，带通优良 特点，成本低。

公开(公告)号：US06222431B1

公开(公告)日：2001-04-24

申请号：US09255790

申请日：1999-02-23

申请人： Toshio Ishizaki ,  Toru Yamada ,  Hideaki Nakakubo ,  Shoichi Kitazawa

发明人： Toshio Ishizaki ,  Toru Yamada ,  Hideaki Nakakubo ,  Shoichi Kitazawa

IPC分类号： H01P120

CPC分类号： H01P11/007 ,  H01P1/20345

摘要： The present invention relates to a balanced dielectric filter used in high-frequency circuits, such as those used for radio apparatuses, and provides a balanced dielectric filter having balanced input/output terminals. Namely, the balanced dielectric filter comprises two resonators, each comprising plural strip-line resonating elements, disposed in parallel and mutually coupled electro-magnetically, and input and output terminals coupled to each resonator so as to function as a pair of balanced input terminals and a pair of balanced output terminals, wherein the two resonators are located in a ceramic dielectric to face each other and to be mirror images of each other. The resonating element is a quarter-wavelength resonating element, the end of the strip line thereof is grounded. The strip lines and coupling electrodes are arranged among ceramic layers, whereby the filter is integrated into a ceramic-multilayered structure.

摘要翻译： 本发明涉及用于无线电设备中的高频电路中使用的平衡介质滤波器，并且提供具有平衡输入/输出端子的平衡介质滤波器。 也就是说，平衡介质滤波器包括两个谐振器，每个谐振器包括并联设置并且电耦合地耦合的多个带状线谐振元件，以及耦合到每个谐振器的输入和输出端子，以便用作一对平衡输入端子和 一对平衡输出端子，其中两个谐振器位于彼此面对的陶瓷电介质中，并且是彼此的镜像。 谐振元件是四分之一波长的谐振元件，其带状线的端部接地。 带状线和耦合电极布置在陶瓷层之间，由此将滤波器集成到陶瓷多层结构中。

公开(公告)号：US6150903A

公开(公告)日：2000-11-21

申请号：US353051

申请日：1999-07-13

申请人： Yasuteru Asakawa ,  Toshio Ishizaki ,  Osamu Kawasaki ,  Toru Yamada

发明人： Yasuteru Asakawa ,  Toshio Ishizaki ,  Osamu Kawasaki ,  Toru Yamada

IPC分类号： H03H3/04 ,  H03H9/02 ,  H03H9/09 ,  H03H9/10 ,  H03H9/58 ,  H03H9/60 ,  H03H9/64

CPC分类号： H03H9/6483 ,  H03H3/04 ,  H03H9/02118 ,  H03H9/1014 ,  H03H9/1035 ,  H03H9/581 ,  H03H9/605 ,  Y10T29/42

摘要： A piezoelectric filter is one not changing in the holding position a resonator in spite of impulse, small in the number of parts, easy to assemble from one direction, small, thin, and stable in characteristic. For example, as shown in FIG. 7, on electrode patterns on a package 10 forming wiring electrode patterns 11, holding protrusions 13 for holding resonators, and partition boards 14 for positioning resonators, a rectangular plate type piezoelectric resonators 12 are adhered with conductive adhesive. The rectangular plate type piezoelectric resonators 12 and the package 10 are adhered and reinforced from above with a vibration absorbing member 15, and wiring is formed from above the resonators by wire bonding 16, thereby wiring resonators in a ladder form. Or, as shown in FIG. 11, after forming electrode patterns 102 on a piezoelectric substrate 101, a rectangular plate resonator 104 is cut out from a piezoelectric substrate 101 by laser in a shape consecutive to the piezoelectric substrate 101 by the node of the length expander mode, and the piezoelectric substrate 101 is enclosed by a spacer 106 and a sheet 107 from above and beneath.

摘要翻译： 压电滤波器是保持位置不变的谐振器，尽管有脉冲，部件数量少，易于从一个方向组装，小，薄，且性能稳定。 例如，如图1所示。 如图7所示，在形成布线电极图案11的保持用谐振器用保持突起13的封装体10上的电极图形和用于定位谐振器的分隔板14上，用导电性粘合剂粘合矩形板状的压电谐振器12。 矩形板式压电谐振器12和封装10由振动吸收构件15从上方粘合和加强，并且通过引线接合16从谐振器上方形成布线，从而以梯形布线谐振器。 或者，如图1所示。 如图11所示，在压电基板101上形成电极图案102之后，通过长度扩展器模式的节点与压电基板101连续的形状的激光从压电基板101切出矩形板状谐振器104，并且压电基板 101由隔板106和片材107从上方和下方包围。

公开(公告)号：US06085071A

公开(公告)日：2000-07-04

申请号：US41110

申请日：1998-03-12

申请人： Toru Yamada ,  Yukihiro Takeda ,  Masaki Kita ,  Hideyuki Miyake ,  Toshio Ishizaki ,  Makoto Fujikawa ,  Hideki Hayama

发明人： Toru Yamada ,  Yukihiro Takeda ,  Masaki Kita ,  Hideyuki Miyake ,  Toshio Ishizaki ,  Makoto Fujikawa ,  Hideki Hayama

IPC分类号： H01P1/213 ,  H04B1/46

CPC分类号： H01P1/213

摘要： An antenna duplexer has a transmission input terminal, a receiving output terminal, an antenna terminal in which a transmission output terminal and a receiving input terminal are used in common, a transmission filter having at least one resonance element set between the transmission input terminal and the transmission output terminal and coupled by a coupling element, a receiving filter having at least one resonance element set between the receiving output terminal and said receiving input terminal and coupled by a coupling element, and an impedance variable element connected to the resonance element of the transmission filter and the resonance element of said receiving filter respectively in parallel, wherein the frequency transfer characteristic of the transmission filter and the frequency transfer characteristic of the receiving filter are controlled by applying control signals and thereby changing the impedances of the impedance variable element.

摘要翻译： 天线双工器具有发送输入端子，接收输出端子，共同使用发送输出端子和接收输入端子的天线端子，发送滤波器具有设置在发送输入端子和发送输入端子之间的至少一个谐振元件 传输输出端子并通过耦合元件耦合;接收滤波器，具有设置在接收输出端子和所述接收输入端子之间并由耦合元件耦合的至少一个谐振元件，以及连接到变速器的谐振元件的阻抗可变元件 滤波器和所述接收滤波器的谐振元件分别并联，其中通过施加控制信号并由此改变阻抗可变元件的阻抗来控制发送滤波器的频率传递特性和接收滤波器的频率传递特性。

公开(公告)号：US5932950A

公开(公告)日：1999-08-03

申请号：US693383

申请日：1996-08-06

申请人： Toru Yamada ,  Toshio Ishizaki ,  Kazunori Nishimura ,  Kozo Murakami

发明人： Toru Yamada ,  Toshio Ishizaki ,  Kazunori Nishimura ,  Kozo Murakami

IPC分类号： H03H7/38 ,  H03H9/00 ,  H03H9/05 ,  H03H9/64 ,  H01L41/08

CPC分类号： H03H9/6479 ,  H03H9/0028 ,  H03H9/0542 ,  H03H9/14591 ,  H03H9/14597 ,  H03H9/6433 ,  H03H9/6463 ,  H03H7/38

摘要： A SAW resonator disposed with an IDT electrode and reflector electrodes is formed on the surface of a piezoelectric substrate. Three pieces of the SAW resonator form an acoustic coupling by being disposed close to each other, electrode fingers comprising the IDT electrode in the center are all grounded, and IDT electrode fingers are electrically independent on the side to be connected to input-output terminals of the IDT electrodes disposed outside. As a result, three excitation modes having different propagation frequencies are generated which are used to attain a broad band SAW resonator filter. When these three pairs of the IDT electrode are electrically independent, a balanced input-output can be achieved, and excellent out-of-band rejection characteristics can be obtained.

摘要翻译： 设置有IDT电极和反射器电极的SAW谐振器形成在压电基板的表面上。 三个SAW谐振器通过彼此靠近地布置形成声耦合，包括中心的IDT电极的电极指全部接地，并且IDT电极指在与要连接到的输入输出端子 IDT电极位于外部。 结果，产生了具有不同传播频率的三种激励模式，用于获得宽带SAW谐振滤波器。 当这三对IDT电极是电独立的时，可以实现平衡的输入 - 输出，并且可以获得优异的带外抑制特性。

公开(公告)号：US5654681A

公开(公告)日：1997-08-05

申请号：US532303

申请日：1995-09-22

申请人： Toshio Ishizaki ,  Hideaki Nakakubo

发明人： Toshio Ishizaki ,  Hideaki Nakakubo

IPC分类号： H01P1/203 ,  H01P7/08 ,  H01P1/20

CPC分类号： H01P7/084 ,  H01P1/2053

摘要： In a laminated dielectric resonator, twomo strip line is formed and resonant frequency is lowered. Accordingly, the length of the resonator is reduced, and the length of the strip line becomes shorter than one fourth of the wavelength with the lowered resonant frequency, which leads to further reduction of the length of the resonator. By lowering the resonant frequency, dielectric material with less relative permittivity can be used, with a result of resonator with high unloaded Q and excellent temperature characteristic. Further, at least one coupling electrode is formed as external or internal electrode to compose a capacitor together with a second strip line, and a laminated dielectric resonator is connected to an external circuit via the coupling electrode. A dielectric filter such as band pass filter, band elimination filter is so composed that the dielectric resonators are cascade-connected to one another. In the thus constructed dielectric filter, external coupling capacitors are unnecessary, reducing the number of parts and facilitating the manufacturing process. Thus, a small-sized, low-cost dielectric filter is attained.

摘要翻译： 在叠层介质谐振器中，形成了双轴线，谐振频率降低。 因此，谐振器的长度减小，并且带状线的长度变得短于具有降低的谐振频率的波长的四分之一，这导致谐振器的长度的进一步减小。 通过降低谐振频率，可以使用具有较小相对介电常数的介电材料，结果是谐振器具有高的无负载Q和优异的温度特性。 此外，形成至少一个耦合电极作为外部或内部电极，以与第二带状线一起构成电容器，并且叠层介质谐振器经由耦合电极连接到外部电路。 介质滤波器如带通滤波器，带除滤波器被组合成使得介质谐振器彼此级联连接。 在这样构造的介质滤波器中，不需要外部耦合电容器，减少了部件的数量并且便于制造过程。 因此，实现了小尺寸，低成本的介质滤波器。