公开(公告)号：US20120188026A1

公开(公告)日：2012-07-26

申请号：US13353350

申请日：2012-01-19

申请人： Toru YAMAJI ,  Kazunori NISHIMURA ,  Joji FUJIWARA ,  Hiroyuki NAKAMURA

发明人： Toru YAMAJI ,  Kazunori NISHIMURA ,  Joji FUJIWARA ,  Hiroyuki NAKAMURA

IPC分类号： H03H9/72

CPC分类号： H03H9/725 ,  H01P1/205 ,  H03H9/14535 ,  H03H9/205 ,  H03H9/25 ,  H03H9/6483 ,  H04B1/0057

摘要： An antenna duplexer includes first and second filters connected to an antenna terminal. The first filter has a passband of a low frequency band. The second filter has a passband of a high frequency band. The second filter is a ladder-type filter including series-arm resonators and parallel-arm resonators. At least one parallel-arm resonator out of the parallel-arm resonators has a main resonance and an auxiliary resonance. Attenuation poles caused by the main resonance and the auxiliary resonance are within the low frequency band. This antenna duplexer has a high attenuation characteristic and a high isolation characteristic while maintaining a low insertion loss.

摘要翻译： 天线双工器包括连接到天线端子的第一和第二滤波器。 第一滤波器具有低频带的通带。 第二滤波器具有高频带的通带。 第二滤波器是包括串联谐振器和并联臂谐振器的梯形滤波器。 并联臂谐振器中的至少一个并联臂谐振器具有主谐振和辅助谐振。 由主谐振和辅助谐振引起的衰减极在低频带内。 该天线双工器具有高衰减特性和高隔离特性，同时保持低插入损耗。

公开(公告)号：US20110221546A1

公开(公告)日：2011-09-15

申请号：US13040450

申请日：2011-03-04

申请人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

发明人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

IPC分类号： H03H9/64

CPC分类号： H03H9/1071 ,  H03H9/0547

摘要： An elastic wave device includes a piezoelectric substrate, an IDT electrode disposed on the piezoelectric substrate, an internal electrode disposed on the piezoelectric substrate and connected to the IDT electrode, a support pillar disposed on the piezoelectric substrate and provided around the IDT electrode, a top panel provided on the support pillar to cover a space above the IDT electrode, an insulation protector provided to cover the support pillar and the top panel, an external electrode disposed on the insulation protector, a conductor pattern disposed on the insulation protector in order to obtain inductance, and a connection electrode provided through the insulation protector, to connect the external electrode and the internal electrode to each other.

摘要翻译： 弹性波装置包括压电基板，设置在压电基板上的IDT电极，设置在压电基板上并连接到IDT电极的内部电极，设置在压电基板上并设置在IDT电极周围的支撑柱，顶部 设置在支撑柱上以覆盖IDT电极上方的空间的面板，设置成覆盖支撑柱和顶板的绝缘保护器，设置在绝缘保护器上的外部电极，设置在绝缘保护器上的导体图案，以获得 电感和通过绝缘保护器提供的连接电极，以将外部电极和内部电极彼此连接。

公开(公告)号：US20110215884A1

公开(公告)日：2011-09-08

申请号：US13037663

申请日：2011-03-01

申请人： Joji FUJIWARA ,  Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA

发明人： Joji FUJIWARA ,  Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA

IPC分类号： H03H9/64

CPC分类号： H03H9/64

摘要： A ladder-type filter having plural elastic-wave resonators provided on a series arm and a parallel arm in a ladder shape on a piezoelectric substrate. Each of the elastic-wave resonators has an interdigital electrode. The interdigital electrode has plural electrode finger pairs formed of electrode fingers extending from first and second bus bars. The interdigital electrode included in the elastic-wave resonator provided on the parallel arm has an electrode cross width of the electrode fingers extending from the first and second bus bars 23 times or more of the wavelength of elastic waves excited by the interdigital electrodes.

摘要翻译： 具有设置在压电基板上的串联臂和梯形平行臂上的多个弹性波谐振器的梯形滤波器。 每个弹性波谐振器都具有叉指电极。 叉指电极具有由从第一和第二汇流条延伸的电极指形成的多个电极指对。 设置在平行臂上的弹性波形谐振器中包括的叉指电极具有从第一和第二母线延伸的电极指的电极交叉宽度，其是由叉指电极激发的弹性波的波长的23倍或更多倍。

公开(公告)号：US20110215883A1

公开(公告)日：2011-09-08

申请号：US13037640

申请日：2011-03-01

申请人： Joji FUJIWARA ,  Tetsuya Tsurunari ,  Hiroyuki Nakamura

发明人： Joji FUJIWARA ,  Tetsuya Tsurunari ,  Hiroyuki Nakamura

IPC分类号： H03H9/64

CPC分类号： H03H9/64

摘要： An acoustic wave resonator includes a piezoelectric substrate and first and second comb-shaped electrodes provided on the piezoelectric substrate and interdigitating with each other. The first comb-shaped electrode includes a first busbar and first electrode fingers extending in a direction non-perpendicular to a direction in which the first busbar extends. The second comb-shaped electrode includes a second busbar and second electrode fingers extending from the second busbar and interdigitating with the first electrode fingers at an interdigitating region. This acoustic wave resonator can suppress a spurious response due to a transverse mode and has a high Q value.

摘要翻译： 声波谐振器包括压电基片和设置在压电基片上并相互交错的第一和第二梳状电极。 第一梳状电极包括第一母线和在与第一母线延伸的方向非垂直的方向上延伸的第一电极指。 第二梳状电极包括从第二母线延伸的第二母线和第二电极指，并且在第一电极指与叉指区交叉。 该声波谐振器可以抑制由横向模式引起的寄生响应并具有高Q值。

公开(公告)号：US20120326801A1

公开(公告)日：2012-12-27

申请号：US13551853

申请日：2012-07-18

申请人： Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA ,  Joji FUJIWARA

发明人： Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA ,  Joji FUJIWARA

IPC分类号： H03H9/72

CPC分类号： H03H9/0576 ,  H03H9/725

摘要： A duplexer includes an acoustic wave element having a first terminal and a second terminal; a substrate; a first columnar conductor electrically connected to the first terminal, and drawn to a back surface of the substrate while partially in the substrate; a second columnar conductor electrically connected to the second terminal, and drawn to the back surface of the substrate while partially in the substrate. Additionally, a first ground pattern region is between the first columnar conductor drawn part and the second columnar conductor drawn part on the back surface of the substrate; a second ground pattern region is electrically connected to the first ground pattern region and arranged in the part not including the part between the first columnar conductor drawn part and the second columnar conductor drawn part; and a third columnar conductor electrically is connected to the first ground pattern region while partially in the substrate.

摘要翻译： 双工器包括具有第一端子和第二端子的声波元件; 底物; 电连接到第一端子的第一柱状导体，并且一部分地在衬底中被吸引到衬底的背面; 电连接到第二端子的第二柱状导体，并且一部分地在衬底中被吸引到衬底的背面。 此外，第一接地图案​​区域位于基板的背面的第一柱状导体拉伸部和第二柱状导体拉伸部之间。 第二接地图案区域电连接到第一接地图案​​区域并且布置在不包括第一柱状导体拉出部分和第二柱状导体拉出部分之间的部分中; 并且第三柱状导体电连接到第一接地图案​​区域，同时部分地在基板中。

公开(公告)号：US20110063046A1

公开(公告)日：2011-03-17

申请号：US12878104

申请日：2010-09-09

申请人： Joji FUJIWARA ,  Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA ,  Rei GOTO

发明人： Joji FUJIWARA ,  Tetsuya TSURUNARI ,  Hiroyuki NAKAMURA ,  Rei GOTO

IPC分类号： H03H9/72 ,  H03H9/64

CPC分类号： H03H9/008 ,  H03H9/0071 ,  H03H9/725

摘要： A surface acoustic wave (SAW) filter device includes an input port for receiving an unbalanced signal, a pair of input/output ports, a first SAW filter for receiving the unbalanced signal from the input port and outputting balanced signals to the pair of input/output ports, a second SAW filter for receiving the balanced signals output from the pair of input/output ports and outputting balanced signals, and a pair of output ports for outputting the balanced signals output from the second SAW filter. The first SAW filter includes a first longitudinally-coupled SAW resonator having a first unbalanced signal input port and first and second balanced signal output ports, and a second longitudinally-coupled SAW resonator having a second unbalanced signal input port and third and fourth balanced signal output port. The first and second unbalanced signal input ports are electrically connected to the input port. The first and third balanced signal output ports both are electrically connected to one of the pair of input/output ports. The second and fourth balanced signal output ports both are electrically connected to another of the pair of input/output ports. This SAW filter device can suppress spurious and has a small insertion loss.

摘要翻译： 表面声波（SAW）滤波器装置包括用于接收不平衡信号的输入端口，一对输入/输出端口，用于从输入端口接收不平衡信号的第一SAW滤波器，并将平衡信号输出到输入/ 输出端口，第二SAW滤波器，用于接收从一对输入/输出端口输出的平衡信号并输出​​平衡信号;以及一对输出端口，用于输出从第二SAW滤波器输出的平衡信号。 第一SAW滤波器包括具有第一不平衡信号输入端口和第一和第二平衡信号输出端口的第一纵向耦合SAW谐振器，以及具有第二不平衡信号输入端口和第三和第四平衡信号输出端的第二纵向耦合SAW谐振器 港口。 第一和第二不平衡信号输入端口电连接到输入端口。 第一和第三平衡信号输出端口都电连接到一对输入/输出端口中。 第二和第四平衡信号输出端口都电连接到该对输入/输出端口中的另一个。 该SAW滤波器装置可以抑制杂散并具有小的插入损耗。

公开(公告)号：US20110068881A1

公开(公告)日：2011-03-24

申请号：US12882254

申请日：2010-09-15

申请人： Joji FUJIWARA ,  Tetsuya Tsurunari ,  Hiroyuki Nakamura

发明人： Joji FUJIWARA ,  Tetsuya Tsurunari ,  Hiroyuki Nakamura

IPC分类号： H03H9/64

CPC分类号： H03H9/0038 ,  H03H9/02748

摘要： An acoustic wave filter includes a first IDT electrode, a second IDT electrode, and a third IDT electrode. The first IDT electrode includes a first signal electrode finger connected to the unbalanced terminal, and a first ground electrode finger. The second IDT electrode includes a second signal electrode finger connected to a first balanced terminal, and a second ground electrode finger. The third IDT electrode includes a third signal electrode finger connected to the second balanced terminal, and a third ground electrode finger. A dummy electrode finger connected neither to the unbalanced terminal nor to the ground is provided on the second IDT electrode side in the first IDT electrode. Thus, the degree of balance between balanced terminals can be improved.

摘要翻译： 声波滤波器包括第一IDT电极，第二IDT电极和第三IDT电极。 第一IDT电极包括连接到不平衡端子的第一信号电极指和第一接地电极指。 第二IDT电极包括连接到第一平衡端子的第二信号电极指和第二接地电极指。 第三IDT电极包括连接到第二平衡端子的第三信号电极指和第三接地电极指。 在第一IDT电极的第二IDT电极侧设置有既不连接到不平衡端也不连接到地的虚拟电极指。 因此，可以提高平衡端子之间的平衡度。