公开(公告)号：EP2128996A4

公开(公告)日：2014-03-26

申请号：EP07850822

申请日：2007-12-18

申请人： HITACHI METALS LTD

发明人： KEMMOCHI SHIGERU ,  FUKAMACHI KEISUKE ,  HAGIWARA KAZUHIRO

IPC分类号： H04B1/50 ,  H03H7/01 ,  H03H7/09 ,  H03H7/18 ,  H03H7/46 ,  H04B1/00 ,  H04B1/44

CPC分类号： H03H7/463 ,  H03H7/09 ,  H03H7/1708 ,  H03H7/175 ,  H03H7/1758 ,  H04B1/0057 ,  H04B1/44 ,  H04B1/50

摘要： An inventive high frequency circuit includes a switch circuit (SPDT1), connected to an antenna terminal (Ant1), using a field-effect transistor for switching between a connection with first to third transmitting terminals (Tx1-1, Tx2-1, Tx3-1) and a connection with first to third receiving terminals (Rx1-1, Rx2-1, Rx3-1); a transmitting-side triplexer (Trip1) for branching a transmitting path connected to the switch circuit into transmitting paths of first to third frequency bands; and a receiving-side triplexer (Trip2) for branching a receiving path connected to the switch circuit into receiving paths of the first to third frequency bands. The switch circuit can be formed as an IC to downsize the circuit. For example, in constructing the high frequency circuit with a laminated module using a ceramic laminated substrate or the like, particularly when the number of triplexers occupying a large space is large, the switch circuit is formed as an IC and mounted on the laminated body, whereby the whole structure can be downsized.

公开(公告)号：EP2575253A1

公开(公告)日：2013-04-03

申请号：EP12162033.0

申请日：2012-03-29

申请人： Onkyo Corporation

发明人： Takahama, Koji

IPC分类号： H03H7/46 ,  H03H7/01

CPC分类号： H03H7/463 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1775

摘要： In a branch circuit (100), a first band-pass filter (1) allows a first band signal in an input signal to pass therethrough.
A second band-pass filter (2) allows a second band signal in the input signal to pass therethrough. The first band-pass filter has a pre-resonance (11) circuit, a post-resonance (12) circuit, and a coil (13). The pre-resonance circuit has a coil (111), and a capacitor (112) connected to the coil in series and is connected to an input terminal (14) of the first band-pass filter. The post-resonance circuit (12) has a coil (121), and a capacitor (122) connected to the coil in series, and is connected between the pre-resonance circuit and an output terminal (15) of the first band-pass filter. The coil (13) is connected between an output terminal (113) of the pre-resonance circuit and a ground.

摘要翻译： 在分支电路（100）中，第一带通滤波器（1）允许输入信号中的第一频带信号通过。 第二带通滤波器（2）允许输入信号中的第二频带信号通过。 第一带通滤波器具有预共振（11）电路，后谐振（12）电路和线圈（13）。 预共振电路具有线圈（111）和与线圈串联连接并连接到第一带通滤波器的输入端子（14）的电容器（112）。 后谐振电路（12）具有线圈（121）和串联连接到线圈的电容器（122），并且连接在预共振电路和第一带通的输出端子（15）之间 过滤。 线圈（13）连接在预共振电路的输出端（113）和地之间。

公开(公告)号：EP2533422A2

公开(公告)日：2012-12-12

申请号：EP12183354.5

申请日：2011-01-28

申请人： Murata Manufacturing Co., Ltd.

发明人： Kadota, Michio ,  Kobayashi, Kideaki ,  Ogami, Takashi

IPC分类号： H03H7/12 ,  H03H9/02 ,  H03H9/64 ,  H03H9/05 ,  H03H7/38 ,  H01J37/32

CPC分类号： H03H9/6403 ,  H03H7/12 ,  H03H7/1708 ,  H03H7/175 ,  H03H7/38 ,  H03H9/02559 ,  H03H9/0542 ,  H03H9/542 ,  H03H9/6483 ,  H03H2007/386 ,  H03H2009/02204

摘要： To provide a tunable filter capable of magnifying a pass band width or increasing a frequency variable amount. A tunable filter (1) where a resonator circuit portion (S11, S12) is provided in at least one of a series arm connecting an input terminal (22) and an output terminal (23) to each other and a parallel arm connecting the series arm and a ground potential to each other, a first variable capacitor (C2, C3) is connected in series to the resonator circuit portion (S11, S12), and a second variable capacitor (CP1, CP2) is connected in parallel to the resonator circuit portion (S11, S12), wherein the resonator circuit portion includes a piezoelectric substrate (11) including LiNbO 3 or LiTaO 3 , an elastic wave resonator including an electrode (12) formed on the piezoelectric substrate (11), and a bandwidth extending inductance (Lx, Lx) connected to the elastic wave resonator.

摘要翻译： 提供能够放大通带宽度或增加频率可变量的可调谐滤波器。 一种可调谐滤波器（1），其中谐振器电路部分（S11，S12）设置在将输入端子（22）和输出端子（23）彼此连接的串联臂中的至少一个以及连接该串联 臂和接地电位，第一可变电容器（C2，C3）串联连接到谐振器电路部分（S11，S12），并且第二可变电容器（CP1，CP2）并联连接到谐振器 电路部分（S11，S12），其中所述谐振器电路部分包括包含LiNbO 3或LiTaO 3的压电衬底（11），包括形成在所述压电衬底（11）上的电极（12）的弹性波谐振器，以及扩展 电感（Lx，Lx）连接到弹性波谐振器。

公开(公告)号：EP2190063A1

公开(公告)日：2010-05-26

申请号：EP10156112.4

申请日：2007-08-31

申请人： Samsung Electro-Mechanics Co., Ltd ,  SAMSUNG ELECTRONICS CO., LTD.

发明人： Park, Se-hyun ,  Yoon, Byung-tae ,  Kim, Young-eil ,  Yoon, Ick-jae ,  Balzovsky, Evgeny V. ,  Buyanov, Yuri I. ,  Koshelev, Vladimir I.

IPC分类号： H01Q1/24 ,  H04B1/18 ,  H03H7/01 ,  H03H7/38 ,  H01Q9/02

CPC分类号： H01Q1/24 ,  H01Q9/02 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1775

摘要： An active antenna capable of transmitting and receiving a wireless signal of a low frequency band and a mobile communication terminal having the active antenna, are provided. The active antenna includes an antenna element (10) which transmits and receives a wireless signal, a filter (20) which filters the wireless signal being received at the antenna element such that a wireless signal belonging to a frequency band lower than the operating frequency of the antenna element is passed, and an amplifier (30) which amplifies the wireless signal being passed through the filter. As a result, the size of the antenna can be greatly reduced, by the use of an active antenna which receives wireless signals of low frequency bands. Additionally, a more compact mobile communication terminal can be provided, because wireless signal of both high frequency bands and low frequency bands can be transmitted and received at one antenna.

摘要翻译： 能够发射和接收低频带和具有该有源天线的移动通信终端的无线信号的有源天线，提供了。 有源天线包括在发送和接收无线信号，一个滤波器天线元件（10）（20），其滤波器在天线元件搜索正在接收的无线信号确实属于频带-低于的工作频率的无线信号 天线元件通过，并在放大器（30）放大该无线信号通过过滤器传递。 其结果是，天线的尺寸可大大降低，通过使用有源天线，其接收低频带的无线信号的。 此外，更紧凑的移动通信终端可以被提供，因为这两个高频带和低频带的无线信号可以是反式mitted和在一个天线接收。

公开(公告)号：EP2169826A1

公开(公告)日：2010-03-31

申请号：EP08775400.8

申请日：2008-05-26

申请人： Indiba, S.A.

发明人： LARIO GARCÍA, Javier ,  CALBET BENACH, José ,  BUISAN ESCARTIN, Jorge

IPC分类号： H03H1/00

CPC分类号： A61B18/1206 ,  A61B18/1402 ,  A61B2018/128 ,  A61B2018/1293 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1775

摘要： A circuit for radiofrequency devices applicable to living tissues and device containing same.
The supply circuit for the electrodes comprises a series resonant filter and a parallel resonant filter, synthonized to admit the fundamental signal of the input signal and simultaneously and exponentially attenuate the remaining harmonics by increasing the frequency thereof, in such a way that the input signal with harmonics only passes the fundamental signal without attenuation to the output, while the harmonics causing interferences are increasingly attenuated as their frequency is raised.

摘要翻译： 一种用于适用于生物体组织和装置包含相同射频装置电路。 用于电极的电源电路包括一个串联谐振滤波器和并联谐振滤波器，synthonized并同时承认输入信号的基本信号和指数地通过增加其频率，寻求一种方式并与输入信号衰减的剩余谐波 谐波仅通过无衰减到输出的基本信号，同时使干扰谐波作为它们的频率被提高，越来越多地衰减。

公开(公告)号：EP1961116A1

公开(公告)日：2008-08-27

申请号：EP06838699.4

申请日：2006-11-29

申请人： TDK Corporation

发明人： QIANG, Richard, Chen

IPC分类号： H03H7/01

CPC分类号： H03H1/00 ,  H01F17/0006 ,  H01F27/40 ,  H01L23/66 ,  H01L24/11 ,  H01L2924/12042 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/175 ,  H03H7/1791 ,  H01L2924/00

摘要： A bandpass filter including one or more metal layers, each layer having a first region (110) and a second region (120). The filter also includes two or more LC resonators (431,433,434) and one or more coupling networks (140) for connecting the two or more LC resonators in parallel. The two or more LC resonators are contained within the first region of the one or more layers and the one or more coupling networks are contained in the second region of the one or more layers.

公开(公告)号：EP1586163A1

公开(公告)日：2005-10-19

申请号：EP03815381.3

申请日：2003-06-03

申请人： SCHAFFNER EMV AG

发明人： SIPPOLA, Mika, Matti ,  KULL-BUCHER, Peter

IPC分类号： H03H7/01 ,  H02M1/12 ,  H02H9/00 ,  H02P7/62

CPC分类号： H02P29/00 ,  H02M1/126 ,  H02P31/00 ,  H03H7/06 ,  H03H7/175 ,  H03H7/1766 ,  H03H7/1791

摘要： Filter network for the reduction of the voltage switching speed between an electrical motor drive and an electrical motor and/or between an electrical distribution network and a motor drive, comprising for each s electrical phase a self-damped inductor having a complex impedance determined by a magnitude (Z) and a phase (φ), the phase (φ) of the complex impedance being comprised between 80 and 90 degrees in the frequency range of the motor's current, and being less than 60 degrees in the frequency range of the overvoltage oscillations. Using the inventive to filter network, it is possible to manufacture low cost and small size du/dt-filters generating low voltage overshoot and low losses.

公开(公告)号：EP1343250A1

公开(公告)日：2003-09-10

申请号：EP03100531.7

申请日：2003-03-04

申请人： Thales

发明人： HODE, Jean-Michel ,  FLOUZAT, Christophe ,  DE GOUY, Jean-Luc

IPC分类号： H03H7/06 ,  H03H9/54

CPC分类号： H03H7/01 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/42 ,  H03H9/542 ,  H03H9/605 ,  H03M3/408 ,  H03M3/438 ,  H03M3/456

摘要： L'invention concerne le filtrage en temps continu. Et, plus particulièrement, elle concerne le filtrage dans une boucle d'asservissement, par exemple dans un modulateur sigma delta. La réalisation de filtre pour ce type d'application rencontre un problème majeur lié à la relativité entre réponses d'amplitude et de phase qui limite les possibilités de choix pour se prémunir de l'instabilité de la boucle.
L'objet de l'invention consiste en un filtre en temps continu à variation de phase minimale réalisant l'intégration passe-bande du signal présenté sur son entrée. La réalisation de filtre en temps continu comme intégrateur passe bande pose le problème du compromis entre variations de gain et variations de phase au voisinage des points -1, compromis qui doit aboutir à la stabilité de la boucle. Ce problème est résolu en utilisant un filtre temps continu intégrateur passe bande comportant au moins un dispositif de résonance à variation de phase minimale.

摘要翻译： 滤波器积分器（1）被用在Σ-Δ调制器的一个奴役环路中，该Σ-Δ调制器在同一个环路中还包括模数转换器（2）和数模转换器（3）。 滤波器积分器特别地包括并联LC电路形式的两个谐振单元6p（1），6p（4），具有交替放大器12（1），12（2），12（3）和滤波器11 2），11（3），连接到输出端的第四放大器（12（4）），发电机5s和负载（7），每个滤波器11（2），11（3）包含三个部分， 谐振单元6p（1），6p（4）具有低过压，设计用于最小化模拟数字转换器（2）带来的频谱折叠的影响。 具有闭环的调制器的功能在相位的+/- 20度以内的幅度和+/- 3dB的幅度的下一个边缘内是稳定的。谐振装置包括谐振器和电阻器，并且传递函数在一个或多个 当频率相对于t对称的频带中，电阻的功能占主导地位时，谐振装置具有相位延迟 他的谐振频率。 当电阻的功能在包括谐振频率的频带中占优势时，谐振装置具有相位提前。 滤波器具有较高的阶数，并且谐振装置在级联，梯形或平衡桥中组装。 部件的元件实现在压电基板中，或在陶瓷壳体的内部。 谐振器是陶瓷声波（SAW），体声波（BAW）或诸如基本体声波谐振器（FBAR），高阶体声波谐振器（HBAR）或薄膜谐振器（TFR），电介质或超导体的变体。 奴役环包括所要求的滤波器，潜数严格大于1.Σ-Δ通带调制器由奴役环路组成，包括直接路由中的模拟数字转换器和数模转换器 循环的返回路线。 元件的一个或多个或全部元件被实现在半导体中，并且滤光器被实现在与半导体有关的压电衬底中，或在调制器的陶瓷壳体的内部。

公开(公告)号：EP1326333A2

公开(公告)日：2003-07-09

申请号：EP03003449.0

申请日：1997-11-28

申请人： Oki Electric Industry Co., Ltd.

发明人： Ehara, Hisanori ,  Noguchi, Kazushige ,  Shimamura, Hajime ,  Okada, Yoshio ,  Komazaki, Tomokazu

IPC分类号： H03H9/64

CPC分类号： H03H9/725 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/1783 ,  H03H7/1791 ,  H03H7/38 ,  H03H9/0576 ,  H03H9/6483 ,  H03H9/72

摘要： A surface-acoustic-wave filter couples a two-port surface-acoustic-wave resonator filter circuit coupled in parallel or in series with a two-port impedance circuit. The two-port impedance circuit has an impedance that creates a pole of attenuation, by making the open-circuit impedance of the surface-acoustic-wave filter equal to the short-circuit impedance. High attenuation over a wide range of stopband frequencies is obtained in this way, combined with steep roll-off between the passband and stopband.

摘要翻译： 表面声波滤波器将与双端口阻抗电路并联或串联耦合的两端口声表面波谐振器滤波器电路耦合。 双端口阻抗电路具有通过使表面声波滤波器的开路阻抗等于短路阻抗而产生衰减极点的阻抗。 以这种方式获得宽范围的阻带频率的高衰减，并结合通带和阻带之间的陡峭滚降。

公开(公告)号：EP1223591A2

公开(公告)日：2002-07-17

申请号：EP02000463.6

申请日：2002-01-08

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Yamakawa, Takehiko ,  Ishizaki, Toshio ,  Yamada, Toru ,  Kitazawa, Shoichi ,  Iwasaki, Tomoyuki

IPC分类号： H01G4/30

CPC分类号： H03H7/175 ,  H01F17/0013 ,  H01F27/362 ,  H01F2017/0026 ,  H01G4/40 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1791 ,  H03H7/463 ,  H03H2001/0085

摘要： A multilayer electronic component has a multilayered product laminating a plurality of dielectric sheets as one piece,
   a plurality of grounded electrodes provided among the dielectric sheets being different inside the multilayered product, and
   inductor electrodes provided on the dielectric sheet surfaces not having the plurality of grounded electrodes inside the multilayered product,
   wherein all or part of the inductor electrodes are placed so as not to be sandwiched by the plurality of grounded electrodes.

摘要翻译： 多层电子部件具有将多个电介质层叠成一体的多层产品，其中在多层产品内的电介质片之间设置的多个接地电极和电感器电极 设置在不具有在多层产品内的多个接地电极的电介质片表面上，其中全部或部分电感器电极被放置成不被多个接地电极夹在中间。