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公开(公告)号：US08306499B2
公开(公告)日：2012-11-06
申请号：US12745615
申请日：2008-11-25
IPC分类号： H04B1/10
CPC分类号： H03H7/0153 , H03H7/1758 , H03H7/1766 , H03H9/6433 , H04H40/18 , H04N5/4401 , H04N5/4446 , H04N7/102 , H04N21/41407 , H04N21/42607
摘要： A digital television broadcast receiving section (100) of a mobile telephone terminal includes an antenna (101), a notch filter (102), a low-pass filter (LPF) (103), a low noise amplifier (LNA) (104), a receiving IC (105), a control section (107), and an input section (108). A passband for digital television broadcast is divided into several parts. The control section (107) switches a characteristic of each of the notch filter (102) and the LPF (103) so as to combine filters appropriate for a low-band channel or a high-band channel. Thus, frequencies in a mobile telephone transmission frequency band of the mobile telephone terminal, and frequencies in a band of other systems, the frequencies in these band being interfering waves, are largely attenuated, and at the same time, frequencies in the passband which is a frequency band for digital television broadcast are allowed to pass with low loss.
摘要翻译： 移动电话终端的数字电视广播接收部分（100）包括天线（101），陷波滤波器（102），低通滤波器（LPF）（103），低噪声放大器（LNA） ，接收IC（105），控制部（107）和输入部（108）。 数字电视广播的通带分为几个部分。 控制部分（107）切换陷波滤波器（102）和LPF（103）中的每一个的特性，以便组合适合于低频带信道或高频带信道的滤波器。 因此，移动电话终端的移动电话发送频带中的频率以及其他系统的频带中的频率，这些频带中的频率是干扰波，被大大地衰减，同时，通带中的频率是 允许数字电视广播的频带以低损耗通过。
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2.发明授权Micromachine switch, filter circuit, duplexer circuit, and communication device 有权微机械开关，滤波电路，双工器电路和通讯装置公开(公告)号：US08022794B2
公开(公告)日：2011-09-20
申请号：US12297334
申请日：2007-04-25
CPC分类号： B81B5/00 , B81B2201/018 , B81B2201/034 , H01H1/0036 , H01P1/127
摘要： A micromachine switch switches an electrical connection between signal electrodes in accordance with control signals. The micromachine switch includes a substrate, a rotating body provided on the substrate, and a movable electrode provided on the rotating body. The micromachine switch also includes a first signal electrode, one end of which is electrically connected to one end of the movable electrode, and a second signal electrode provided near the rotating body to be positioned such that a rotation of the rotating body causes the second signal electrode to be electrically connected to another end of the movable electrode. Further, a drive section causes, based on a first control signal, the rotating body to rotate until the movable electrode and the second signal electrode are electrically connected, and causes, based on a second control signal, the rotating body to rotate until the movable electrode and the second signal electrode are disconnected.
摘要翻译： 微机械开关根据控制信号切换信号电极之间的电气连接。 微机械开关包括基板，设置在基板上的旋转体和设置在旋转体上的可动电极。 微机械开关还包括第一信号电极，其一端电连接到可动电极的一端，以及第二信号电极，设置在旋转体附近，以定位成使得旋转体的旋转引起第二信号 电极电连接到可动电极的另一端。 此外，驱动部基于第一控制信号使旋转体旋转直到可动电极和第二信号电极电连接，并且基于第二控制信号使旋转体旋转直到可动 电极和第二信号电极断开。
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公开(公告)号：US07893793B2
公开(公告)日：2011-02-22
申请号：US11844809
申请日：2007-08-24
摘要： A film bulk acoustic wave resonator including a piezoelectric body 1, and a first electrode 2 and a second electrode 3 that are provided respectively on the main surfaces of the piezoelectric body, the piezoelectric body being applied an electric field through the first and the second electrodes so as to generate a resonant vibration. A first mass load material portion 4 having an annular shape is provided outside the planar region of the first electrode on the main surface of the piezoelectric body, a mass load effect thereof being larger than that of the first electrode. The outer periphery of the first electrode and the inner periphery of the first mass load material portion are spaced apart from each other, whereby the first electrode and the first mass load material portion are electrically insulated from each other. The first mass load material portion has a laminated structure including a first auxiliary electrode layer 2a and a load material layer 4a formed on the auxiliary electrode layer. The first auxiliary electrode is formed with the same material to have the same thickness as the first electrode. Energy loss can be reduced, while the first mass load material portion can be formed easily with high precision.
摘要翻译： 一种包括分别设置在压电体的主表面上的压电体1和第一电极2和第二电极3的薄膜体声波谐振器，压电体通过第一和第二电极施加电场 以产生共振振动。 具有环状的第一质量负荷材料部分4设置在压电体的主表面上的第一电极的平面区域的外侧，其质量负载效应大于第一电极的质量负载效应。 第一电极的外周和第一质量负载材料部的内周彼此间隔开，由此第一电极和第一质量负载材料部彼此电绝缘。 第一质量负载材料部分具有包括形成在辅助电极层上的第一辅助电极层2a和负载材料层4a的叠层结构。 第一辅助电极由相同的材料形成，以具有与第一电极相同的厚度。 能够容易地以高精度形成第一质量负荷材料部，能够减少能量损失。
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4.再颁专利Piezoelectric resonator having a spurious component control layer, filter using the piezoelectric resonator, and duplexer using the piezoelectric resonator 失效具有杂散分量控制层的压电谐振器，使用压电谐振器的滤波器，以及使用压电谐振器的双工器公开(公告)号：USRE42009E1
公开(公告)日：2010-12-28
申请号：US12068675
申请日：2008-02-08
CPC分类号： H03H9/588 , H03H9/02094 , H03H9/02102 , H03H9/0211 , H03H9/173 , H03H9/174 , H03H9/175 , H03H9/585 , H03H9/589
摘要： A piezoelectric resonator of the present invention is structured such that on a substrate 5 having a cavity 4 formed therein, a lower electrode 3, a piezoelectric body 1, a spurious component control layer 16, and an upper electrode 2 are formed in this order from bottom up. The spurious component control layer 16 is a layer for controlling a spurious frequency, and composed of, for example, a metallic material, a dielectric material, or a piezo electric material. By additionally providing the spurious component control layer 16, it is made possible to cause variation of the spurious frequency due to unwanted variation to become greater than variation in resonance frequency of the main resonance of the piezoelectric resonator. Thus, it is possible to realize a piezoelectric resonator having an admittance frequency response where no spurious component occurs between resonance frequency fr and antiresonance frequency fa.
摘要翻译： 本发明的压电谐振器被构造成使得在其中形成有空腔4的基板5上形成下电极3，压电体1，杂散分量控制层16和上电极2，从而 自下而上。 杂散分量控制层16是用于控制寄生频率的层，例如由金属材料，电介质材料或压电材料构成。 通过附加地提供寄生分量控制层16，可以使由于不期望的变化引起的寄生频率的变化变得大于压电谐振器的主谐振的谐振频率的变化。 因此，可以实现在谐振频率fr和反谐振频率fa之间不产生杂散分量的导纳频率响应的压电谐振器。
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5.发明授权公开(公告)号：US07719390B2
公开(公告)日：2010-05-18
申请号：US12019330
申请日：2008-01-24
CPC分类号： H03H9/564 , H03H3/04 , H03H9/0207 , H03H2003/0428 , Y10T29/42
摘要： A dual mode piezoelectric filter includes a piezoelectric material layer composed of a piezoelectric thin film of the high-cut type formed on a substrate, a first electrode and a second electrode formed on one of the major surfaces of the piezoelectric material layer with a gap provided therebetween, a third electrode formed on the other major surface of the piezoelectric material layer opposite to the first electrode, the second electrode, and the gap, and an interelectrode mass load element formed in the gap or at a position opposite to the gap on a surface of the piezoelectric material layer. The relationships (ρ1×h1)≦(ρa×ha) and (ρ2×h2)≦(ρa×ha) are satisfied, where h1 is the thickness and ρ1 is the density of the first electrode, h2 is the thickness and ρ2 is the density of the second electrode, and ha is the thickness and ρa is the density of the interelectrode mass load element. A filter characteristic with a smooth passband and low losses is obtained.
摘要翻译： 双模式压电滤波器包括由形成在基板上的高切割类型的压电薄膜构成的压电材料层，第一电极和形成在压电材料层的一个主表面上的间隔设置的第二电极 其间形成在压电材料层的与第一电极，第二电极和间隙相反的另一个主表面上的第三电极，以及形成在间隙中或与间隙相对的位置处的电极间质量负载元件 压电材料层的表面。 满足关系（＆rgr; 1×h1）＆nlE;（＆rgr; a×ha）和（＆rgr; 2×h2）＆nlE;（＆rgr; a×ha），其中h1是厚度，＆rgr; 1是密度 的第一个电极，h2是厚度，＆rgr; 2是第二个电极的密度，ha是厚度，而a是电极间质量负载元件的密度。 获得具有平滑通带和低损耗的滤波器特性。
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公开(公告)号：US20080051039A1
公开(公告)日：2008-02-28
申请号：US11844809
申请日：2007-08-24
摘要： A film bulk acoustic wave resonator including a piezoelectric body 1, and a first electrode 2 and a second electrode 3 that are provided respectively on the main surfaces of the piezoelectric body, the piezoelectric body being applied an electric field through the first and the second electrodes so as to generate a resonant vibration. A first mass load material portion 4 having an annular shape is provided outside the planar region of the first electrode on the main surface of the piezoelectric body, a mass load effect thereof being larger than that of the first electrode. The outer periphery of the first electrode and the inner periphery of the first mass load material portion are spaced apart from each other, whereby the first electrode and the first mass load material portion are electrically insulated from each other. The first mass load material portion has a laminated structure including a first auxiliary electrode layer 2a and a load material layer 4a formed on the auxiliary electrode layer. The first auxiliary electrode is formed with the same material to have the same thickness as the first electrode. Energy loss can be reduced, while the first mass load material portion can be formed easily with high precision.
摘要翻译： 一种包括分别设置在压电体的主表面上的压电体1和第一电极2和第二电极3的薄膜体声波谐振器，压电体通过第一和第二电极施加电场 以产生共振振动。 具有环状的第一质量负荷材料部分4设置在压电体的主表面上的第一电极的平面区域的外侧，其质量负载效应大于第一电极的质量负载效应。 第一电极的外周和第一质量负载材料部的内周彼此间隔开，由此第一电极和第一质量负载材料部彼此电绝缘。 第一质量负载材料部分具有包括形成在辅助电极层上的第一辅助电极层2a和负载材料层4a的叠层结构。 第一辅助电极由相同的材料形成，以具有与第一电极相同的厚度。 能够容易地以高精度形成第一质量负荷材料部，能够减少能量损失。
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7.发明申请Piezoelectric filter, antenna duplexer, and communications apparatus employing piezoelectric resonator 失效压电滤波器，天线双工器以及采用压电谐振器的通信装置公开(公告)号：US20070296523A1
公开(公告)日：2007-12-27
申请号：US11812013
申请日：2007-06-14
CPC分类号： H03H9/588 , H03H3/04 , H03H9/587 , H03H2003/023 , H03H2003/0414
摘要： A piezoelectric filter comprises a substrate and a plurality of piezoelectric resonators provided on the same substrate. Each piezoelectric resonator comprises a cavity formed in the substrate, a lower electrode formed on the substrate, covering the cavity, a piezoelectric material layer formed on the lower electrode, and an upper electrode formed on the piezoelectric material layer. At least one of the piezoelectric resonators has a cavity formed of a plurality of cells.
摘要翻译： 压电滤波器包括基板和设置在同一基板上的多个压电谐振器。 每个压电谐振器包括形成在基板中的空腔，形成在基板上的覆盖空腔的下电极，形成在下电极上的压电材料层和形成在压电材料层上的上电极。 至少一个压电谐振器具有由多个单元形成的空腔。
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公开(公告)号：US07301420B2
公开(公告)日：2007-11-27
申请号：US10543837
申请日：2004-11-19
CPC分类号： H03H9/605 , H03H9/6483
摘要： A piezoelectric resonator filter for allowing a high-frequency signal in a desired frequency band to pass therethrough. The piezoelectric resonator filter presents a low insertion loss while securing satisfactory characteristics in a stop band. The piezoelectric resonator includes two or more reactance elements in serial connection between input and output terminals, at least three or more piezoelectric resonators in parallel connection between the input and output terminals, and an inductor having a grounded end. The reactive elements and resonators of the piezoelectric resonator are arranged in a ladder connection. Among the three or more piezoelectric resonators, only those piezoelectric resonators which do not adjoin each other are connected in common to the inductor.
摘要翻译： 一种用于允许期望频带中的高频信号通过的压电谐振器滤波器。 压电谐振器滤波器具有低插入损耗，同时在阻带中确保令人满意的特性。 压电谐振器包括在输入和输出端子之间串联连接的两个或更多个电抗元件，在输入和输出端子之间并联连接的至少三个或更多个压电谐振器和具有接地端的电感器。 压电谐振器的电抗元件和谐振器被布置在梯形连接中。 在三个或更多个压电谐振器中，只有那些彼此不相邻的压电谐振器共同地连接到电感器。
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9.发明授权Piezoelectric device, antenna duplexer, and method of manufacturing piezoelectric resonators used therefor 有权压电器件，天线双工器以及用于此的压电谐振器的制造方法公开(公告)号：US07242130B2
公开(公告)日：2007-07-10
申请号：US10979276
申请日：2004-11-03
CPC分类号： H03H9/605 , H03H3/02 , H03H9/02118 , H03H9/587
摘要： A piezoelectric device of the present invention includes first and second piezoelectric resonators. The first piezoelectric resonator has a structure in which a cavity, a lower electrode, a piezoelectric layer, and an upper electrode are formed on a substrate. The second piezoelectric resonator has a structure in which a cavity, a lower electrode, a piezoelectric layer, and an upper electrode are formed on the substrate. A feature of the above-structure piezoelectric device is that the piezoelectric layers, have the same film thickness, and the depth of the cavity of the first piezoelectric resonator is different from the depth of the cavity of the second piezoelectric resonator.
摘要翻译： 本发明的压电装置包括第一和第二压电谐振器。 第一压电谐振器具有在基板上形成空腔，下电极，压电层和上电极的结构。 第二压电谐振器具有在基板上形成空腔，下电极，压电层和上电极的结构。 上述结构的压电装置的特征在于，压电层具有相同的膜厚度，并且第一压电谐振器的空腔的深度与第二压电谐振器的腔的深度不同。
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公开(公告)号：US07054608B2
公开(公告)日：2006-05-30
申请号：US10044541
申请日：2002-01-11
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.
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