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1. 发明授权

US09912319B2 Duplexer and communication module 有权
公开(公告)号：US09912319B2
公开(公告)日：2018-03-06
申请号：US14896334
申请日：2014-03-27
申请人： KYOCERA Corporation
发明人： Tsuyoshi Nakai , Tetsuya Kishino , Masahisa Shimozono , Yuriko Nishimura
IPC分类号： H04B7/24 , H03H9/76 , H03H9/02 , H03H9/64 , H03H9/72 , H04L5/14 , H03H9/00 , H03H9/54
CPC分类号： H03H9/76 , H03H9/0038 , H03H9/02755 , H03H9/542 , H03H9/6406 , H03H9/6483 , H03H9/6489 , H03H9/725 , H04B7/24 , H04L5/14
摘要： A branching 1 filter has an antenna terminal 3 which receives signal waves and disturbance waves, a transmission filter 11 which is connected to the antenna terminal 3, a reception filter 13 which is connected to the antenna terminal 3 and receives a portion of the signal waves and has, as a passband, a frequency range higher than a passband of the transmission filter 11, and a disturbance wave resonator which is connected to the antenna terminal 3 and to the ground and positioned closer to the antenna terminal 3 side than the transmission filter 11 and the reception filter 13. The disturbance wave resonator 15 is connected to antenna terminal 3 at a position closer to the antenna terminal 3 side than the transmission filter 11 and the reception filter 13. A resonance frequency of the disturbance wave resonator 15 is within a frequency range smaller than the passband of the transmission filter and includes a frequency range of the disturbance waves.

2. 发明申请

US20160149554A1 ELASTIC WAVE RESONATOR, ELASTIC WAVE FILTER DEVICE, AND DUPLEXER 有权
标题翻译：弹性波共振器，弹性波滤波器和双工器
公开(公告)号：US20160149554A1
公开(公告)日：2016-05-26
申请号：US15014174
申请日：2016-02-03
申请人： Murata Manufacturing Co., Ltd.
发明人： Ryo NAKAGAWA
IPC分类号： H03H9/13 , H03H9/64 , H03H9/60 , H03H9/17 , H03H9/54
CPC分类号： H03H9/725 , H03H9/02755 , H03H9/02763 , H03H9/02992 , H03H9/132 , H03H9/17 , H03H9/25 , H03H9/54 , H03H9/605 , H03H9/64 , H03H9/6469 , H03H9/6483
摘要： An elastic wave includes a piezoelectric substrate having a polarization direction denoted by an arrow Px, and first and second IDT electrodes arranged on the substrate in an elastic wave propagation direction with a shared reflector therebetween. A first bus bar of the first IDT electrode and a first end portion bus bar of a second reflector are connected to a wiring electrode to define a first terminal. A second bus bar of the first IDT electrode and a second end portion bus bar of the shared reflector are connected to each other to define a second terminal. A first end portion bus bar and a first bus bar are electrically connected to each other. A second bus bar and a second end portion bus bar are electrically connected to each other, and the first and second IDT electrodes and are connected in parallel between the first and second terminals.
摘要翻译：弹性波包括具有由箭头Px表示的偏振方向的压电基板，以及在弹性波传播方向上布置在基板上的第一和第二IDT电极，其间具有共用反射体。第一IDT电极的第一母线和第二反射器的第一端部汇流条连接到布线电极以限定第一端子。第一IDT电极的第二母线和共享反射体的第二端部汇流条彼此连接以限定第二端子。第一端部汇流条和第一汇流条彼此电连接。第二母线和第二端部母线彼此电连接，并且第一和第二IDT电极并联连接在第一和第二端子之间。

3. 发明授权

US06559739B2 String weighted surface acoustic wave transducer 有权
标题翻译：弦加权声表面波换能器
公开(公告)号：US06559739B2
公开(公告)日：2003-05-06
申请号：US09972022
申请日：2001-10-05
申请人： Leland P. Solie
发明人： Leland P. Solie
IPC分类号： H03H9145
CPC分类号： H03H9/02724 , H03H9/02755 , H03H9/14517 , H03H9/14526 , H03H9/14547 , H03H9/14552
摘要： Surface-acoustic-wave transducers include interdigital electrode fingers alternately connected to hot and ground bus bars. The gap between two adjacent electrodes has a relative tap weight proportional to the voltage difference between the two electrodes. A set of subtransducers connected in series, a string, has two ends that are connected to the major bus bars; several strings are connectable to a single pair of major bus bars. In string weighting a plurality of strings make up the number of different tap weights within the transducer. Here every subtransducer is preferably of minimal length, for example, nominally one wavelength. Since the full bus bar voltage is divided equally between the N subtransducers, the voltage at each tap is 1/N, and the length of the string is nominally N+1 wavelengths. Therefore, for a length of the transducer all taps have the same tap weight within each string.
摘要翻译：表面声波传感器包括交叉连接到热和接地母线的交叉指状电极指。两个相邻电极之间的间隙具有与两个电极之间的电压差成比例的相对抽头重量。串联连接的一组子传感器，一个串，具有连接到主要母线的两端; 几条线可连接到一对主母线上。在弦加权中，多个弦组成换能器内不同抽头权重的数量。这里，每个子传感器优选地具有最小的长度，例如，名义上一个波长。由于在N个子传感器之间平均分配全母线电压，所以每个抽头的电压为1 / N，串的长度通常为N + 1个波长。因此，对于传感器的长度，所有抽头在每个串中具有相同的抽头重量。

4. 发明授权

US4918349A Surface acoustic wave device having apodized transducer provided with irregular pitch electrode group 失效
标题翻译：具有不规则间距电极组的变迹传感器的声表面波装置
公开(公告)号：US4918349A
公开(公告)日：1990-04-17
申请号：US267294
申请日：1988-11-04
申请人： Takashi Shiba , Yuji Fujita , Toshimitsu Takahashi , Jun Yamada
发明人： Takashi Shiba , Yuji Fujita , Toshimitsu Takahashi , Jun Yamada
IPC分类号： H03H9/02 , H03H9/145
CPC分类号： H03H9/02889 , H03H9/02755 , H03H9/02992 , H03H9/14505 , H03H9/14508 , H03H9/1452 , H03H9/14552
摘要： A surface acoustic wave device characterized in that in addition to linear first bus-bar electrodes which connect in alignment the edges of the same potential electrodes of interdigital electrodes, second bus-bar electrodes are provided which connect the same potential electrodes in the vicinity of the overlapping positions. Also disclosed is a surface acoustic wave device characterized in that the metalized ratio g/p, which is the ratio of the width of an electrode and the intercentral distance between the adjacent electrodes in an irregular pitch electrode group, is varied between 0.1 to 0.4 or between 0.6 to 0.9.
摘要翻译：一种表面声波装置，其特征在于，除了连接在叉指电极的相同电位电极的边缘上的线性第一汇流条电极之外，还提供了第二汇流条电极，其将相邻的电位电极重叠位置还公开了一种弹性表面波器件，其特征在于，在不规则间距电极组中，电极宽度与相邻电极之间的中心距离之比的金属化率g / p在0.1至0.4之间变化或介于0.6至0.9之间。

5. 发明授权

US10873319B2 Compensation structures for radio frequency filtering devices 有权
公开(公告)号：US10873319B2
公开(公告)日：2020-12-22
申请号：US16272139
申请日：2019-02-11
申请人： Qorvo US, Inc.
发明人： Manjunath Swamy
IPC分类号： H03H9/64 , H03H9/02 , H04B1/00 , H03H9/72 , H04B1/10
CPC分类号： H03H9/6489 , H03H9/02574 , H03H9/02661 , H03H9/02732 , H03H9/02755 , H03H9/6483 , H03H9/725 , H04B1/0057 , H04B1/1018
摘要： Radio frequency (RF) filtering devices, and particularly compensation structures for RF filtering devices are disclosed. Representative RF filtering devices are described that include compensation structures configured to adjust, reduce, or cancel leakage signals within the RF filtering devices, thereby providing improved isolation. Compensation structures may include surface acoustic wave (SAW) devices having multiple interdigital transducers (IDT) that are longitudinally coupled between two reflective structures. Different IDTs of a SAW device may be electrically connected to an RF filtering device, and at least one IDT of the SAW device may comprise an electrically floating electrode that provides the ability to further tune acoustic waves. Depending on the application, the compensation structure may be electrically connected to different portions of the RF filtering device. In certain embodiments, the RF filtering device is an RF duplexing device.

6. 发明授权

US09843305B2 Elastic wave resonator, elastic wave filter device, and duplexer 有权
公开(公告)号：US09843305B2
公开(公告)日：2017-12-12
申请号：US15014174
申请日：2016-02-03
申请人： Murata Manufacturing Co., Ltd.
发明人： Ryo Nakagawa
IPC分类号： H03H9/72 , H03H9/64 , H03H9/25 , H03H9/02 , H03H9/13 , H03H9/17 , H03H9/54 , H03H9/60
CPC分类号： H03H9/725 , H03H9/02755 , H03H9/02763 , H03H9/02992 , H03H9/132 , H03H9/17 , H03H9/25 , H03H9/54 , H03H9/605 , H03H9/64 , H03H9/6469 , H03H9/6483
摘要： An elastic wave includes a piezoelectric substrate having a polarization direction denoted by an arrow Px, and first and second IDT electrodes arranged on the substrate in an elastic wave propagation direction with a shared reflector therebetween. A first bus bar of the first IDT electrode and a first end portion bus bar of a second reflector are connected to a wiring electrode to define a first terminal. A second bus bar of the first IDT electrode and a second end portion bus bar of the shared reflector are connected to each other to define a second terminal. A first end portion bus bar and a first bus bar are electrically connected to each other. A second bus bar and a second end portion bus bar are electrically connected to each other, and the first and second IDT electrodes and are connected in parallel between the first and second terminals.

7. 发明授权

US4803449A Filter combining surface acoustic wave resonators 失效
标题翻译：滤波器组合声表面波谐振器
公开(公告)号：US4803449A
公开(公告)日：1989-02-07
申请号：US122325
申请日：1987-11-18
申请人： Mitsutaka Hikita , Yoichi Saigo , Kazuhito Kurosawa
发明人： Mitsutaka Hikita , Yoichi Saigo , Kazuhito Kurosawa
IPC分类号： H03H9/145 , H03H3/08 , H03H9/02 , H03H9/64 , H03H9/25
CPC分类号： H03H9/6479 , H03H9/02755 , H03H9/6443 , H03H9/6463 , H03H9/14597
摘要： This invention relates to the structure of a band-pass or band-rejection filters by combining a plurality of one-port surface acoustic wave resonators whose interdigital electrode fingers are disposed on a piezoelectric substrate. The filter combining surface acoustic wave resonators of the present invention consists of a series circuit of the one-port surface acoustic wave resonators disposed on a piezoelectric substrate for transmitting elastic surface wave and a plurality of circuit elements containing capacitance elements, and one-port surface acoustic wave resonators disposed between the electrodes of the plurality of circuit elements and the common ground. This structure can accomplish a filter having a low loss, high power handling capability and high design freedom of rejection- and passing-band.
摘要翻译：本发明涉及通过组合多个单指示声表面波谐振器的带通或带阻滤波器的结构，其中叉形电极指配置在压电基片上。组合本发明的表面声波谐振器的滤波器由布置在用于传播弹性表面波的压电基片上的单端口声表面波谐振器和包含电容元件的多个电路元件的串联电路和单端口表面声波谐振器设置在多个电路元件的电极和公共地之间。该结构可以实现具有低损耗，高功率处理能力和高排斥与通带设计自由度的滤波器。

8. 发明授权

US4736172A Transducer for SAW arrangements 失效
标题翻译： SAW安排传感器
公开(公告)号：US4736172A
公开(公告)日：1988-04-05
申请号：US865559
申请日：1986-05-02
申请人： Josef Ebneter
发明人： Josef Ebneter
IPC分类号： H03H9/25 , H03H3/08 , H03H9/145 , H03H9/64 , H03H9/24
CPC分类号： H03H9/1452 , H03H9/02755 , H03H9/02944 , H03H9/14505 , H03H9/1455 , H03H9/6426
摘要： In a directional transducer for SAW filters on a piezoelectric substrate, the transducer is formed of a plurality of groups which are connected in half-groups to busbars for two phases. The half-groups are alternately distributed into two or more channels such that the finger electrodes of each phase form a more or less gap-free series as viewed over all channels. A common, meandering busbar for both phases is associated with each channel.
摘要翻译： PCT No.PCT / EP85 / 00477 Sec。 371日期：1986年5月2日 102（e）日期1986年5月2日PCT提交1985年9月2日PCT公布。出版物WO86 / 01655 日本1993年3月13日。在压电基片上用于SAW滤波器的方向传感器中，换能器由多个组合组成，这两个组以两组连接到母线两相。半组交替地分布在两个或更多个通道中，使得每个相的指状电极在所有通道上观察时形成或多或少的无间隙的串联。两个阶段的一个常见的曲折母线与每个通道相关联。

9. 发明申请

US20160126932A1 DUPLEXER AND COMMUNICATION MODULE 有权
标题翻译：双工和通信模块
公开(公告)号：US20160126932A1
公开(公告)日：2016-05-05
申请号：US14896334
申请日：2014-06-04
申请人： KYOCERA CORPORATION
发明人： Tsuyoshi NAKAI , Tetsuya KISHINO , Masahisa SHIMOZONO , Yuriko NISHIMURA
IPC分类号： H03H9/76 , H04B7/24 , H03H9/64 , H04L5/14
CPC分类号： H03H9/76 , H03H9/0038 , H03H9/02755 , H03H9/542 , H03H9/6406 , H03H9/6483 , H03H9/6489 , H03H9/725 , H04B7/24 , H04L5/14
摘要： A branching 1 filter has an antenna terminal 3 which receives signal waves and disturbance waves, a transmission filter 11 which is connected to the antenna terminal 3, a reception filter 13 which is connected to the antenna terminal 3 and receives a portion of the signal waves and has, as a passband, a frequency range higher than a passband of the transmission filter 11, and a disturbance wave resonator which is connected to the antenna terminal 3 and to the ground and positioned closer to the antenna terminal 3 side than the transmission filter 11 and the reception filter 13. The disturbance wave resonator 15 is connected to antenna terminal 3 at a position closer to the antenna terminal 3 side than the transmission filter 11 and the reception filter 13. A resonance frequency of the disturbance wave resonator 15 is within a frequency range smaller than the passband of the transmission filter and includes a frequency range of the disturbance waves.
摘要翻译：分支1滤波器具有接收信号波和干扰波的天线端子3，连接到天线端子3的发射滤波器11，连接到天线端子3并接收信号波的一部分的接收滤波器13 并且作为通带具有高于发送滤波器11的通带的频率范围，以及与发送滤波器11连接的天线端子3和接地并位于更靠近天线端子3侧的干扰波谐振器 11和接收滤波器13.干扰波谐振器15在比发送滤波器11和接收滤波器13更靠近天线端子3侧的位置处连接到天线端子3.干扰波谐振器15的谐振频率在频率范围小于发送滤波器的通带，并且包括干扰波的频率范围。

10. 发明授权

US09257962B2 Elastic wave device 有权
标题翻译：弹性波装置
公开(公告)号：US09257962B2
公开(公告)日：2016-02-09
申请号：US13823760
申请日：2012-10-30
申请人： SKYWORKS PANASONIC FILTER SOLUTIONS JAPAN CO., LTD.
发明人： Satoru Ikeuchi , Kazunori Nishimura
IPC分类号： H03H9/64 , H01L41/047 , H03H9/00 , H03H9/02
CPC分类号： H03H9/643 , H01L41/047 , H03H9/0038 , H03H9/02748 , H03H9/02755
摘要： An elastic wave device includes a piezoelectric substrate, a pair of reflectors disposed on the piezoelectric substrate along the propagation direction of an elastic wave, and first to fifth comb electrode pairs disposed in this order between the pair of reflectors. Ground comb electrodes of adjacent comb electrode pairs are connected by an even number of connection electrode fingers or by an odd number of connection electrode fingers.
摘要翻译：弹性波装置包括压电基板，沿着弹性波的传播方向设置在压电基板上的一对反射器，以及在该对反射器之间依次布置的第一至第五梳状电极对。相邻梳状电极对的梳状电极通过偶数个连接电极指或奇数个连接电极指连接。

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