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公开(公告)号：US20090167459A1
公开(公告)日：2009-07-02
申请号：US12161772
申请日：2007-01-31
申请人： Michael Jakob , Gholamreza Dadgar Javid , Maximilian Pitschi , Karl-Christian Wagner , Juergen Kiwitt
发明人： Michael Jakob , Gholamreza Dadgar Javid , Maximilian Pitschi , Karl-Christian Wagner , Juergen Kiwitt
摘要： A duplexer is described herein. The duplexer includes a transmission branch configured to allow passage of signals in a transmission band. The duplexer also includes a reception branch configured to allow passage of signals in a reception band. The duplexer also includes a band rejection filter in the transmission branch configured to produce a short circuit to an electrical ground in a stopband. The stopband at least partially overlaps the reception band.
摘要翻译： 这里描述了双工器。 双工器包括被配置为允许传输频带中的信号通过的传输分支。 双工器还包括被配置为允许接收频带中的信号通过的接收分支。 双工器还包括传输分支中的带阻滤波器，其被配置为产生在阻带中的电接地的短路。 阻挡带至少部分地与接收频带重叠。
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公开(公告)号：US20080238567A1
公开(公告)日：2008-10-02
申请号：US12064973
申请日：2006-09-01
IPC分类号： H03H7/38
CPC分类号： H03H7/46 , H04B1/0057
摘要： An electrical component is described with a first signal path (TX, RX1) and a second signal path (RX, RX2) that are connected to a common signal path (ANT, RX12). In the first signal path a first filter (F1) is arranged, and in the second signal path a second filter (F2) is arranged. The component comprises a first matching circuit (MA1) that comprises a shunt arm to ground. In the shunt arm, an inductor (L) is arranged, which is connected to the first signal path, the second signal path, and the common signal path. The component comprises a carrier substrate (SU) on which the filters (F1, F2), which are preferably implemented as chips, are mounted. The inductor (L) is integrated in the carrier substrate (SU).
摘要翻译： 使用连接到公共信号路径（ANT，RX 12）的第一信号路径（TX，RX 1）和第二信号路径（RX，RX 2）描述电气部件。 在第一信号路径中布置有第一滤波器（F 1），并且在第二信号路径中布置有第二滤波器（F 2）。 该组件包括第一匹配电路（MA 1），其包括到地的分流臂。 在分路臂中，布置有电感器（L），其连接到第一信号路径，第二信号路径和公共信号路径。 该组件包括载体衬底（SU），其上安装了优选地实现为芯片的滤波器（F 1，F 2）。 电感器（L）集成在载体衬底（SU）中。
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13.发明授权Micro-acoustic filter having compensated cross-talk and method for compensation 有权具有补偿串扰的微声滤波器和补偿方法公开(公告)号：US09362884B2
公开(公告)日：2016-06-07
申请号：US13576653
申请日：2011-02-14
CPC分类号： H03H9/02874 , H03H9/02913 , H03H9/02952 , H03H9/02992 , H03H9/6493
摘要： The invention relates to a micro-acoustic filter having a first and a second converter, in which the electromagnetic and capacitive cross-talk between the first and second converters is compensated for by providing additional coupling capacitors and additional current loops. Additional coupling capacitors and current loops are arranged in such a manner that they can counteract the sign of the natural coupling specified by the design and thus completely compensate for said coupling.
摘要翻译： 本发明涉及一种具有第一和第二转换器的微声滤波器，其中第一和第二转换器之间的电磁和电容串扰通过提供额外的耦合电容器和附加的电流回路被补偿。 额外的耦合电容器和电流回路以这样的方式布置，使得它们可以抵消由设计指定的自然耦合的符号，从而完全补偿所述耦合。
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公开(公告)号：US20070279156A1
公开(公告)日：2007-12-06
申请号：US10559508
申请日：2004-04-16
IPC分类号： H03H9/54
CPC分类号： H03H9/0057 , H03H9/0061 , H03H9/0071 , H03H9/0076 , H03H9/02913 , H03H9/14588
摘要： Between the two acoustic tracks of a SAW filter constructed on the surface of a piezoelectric substrate, a metallic shielding structure is positioned and connected to ground in order to shield two transducers positioned in different tracks. In this way crosstalk within a filter is prevented and the stop-band selection is improved.
摘要翻译： 在构造在压电基板的表面上的SAW滤波器的两个声轨之间，将金属屏蔽结构定位并连接到地，以便屏蔽位于不同轨道中的两个换能器。 以这种方式防止滤波器内的串扰被阻止并且阻带选择得到改善。
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15.发明授权Surface acoustic wave filter having an improved edge steepness via series resonators with different finger periodicities 有权表面声波滤波器通过具有不同手指周期性的串联谐振器具有改善的边缘陡度公开(公告)号：US06351197B1
公开(公告)日：2002-02-26
申请号：US09484798
申请日：2000-01-18
申请人： Peter Selmeier , Maximilian Pitschi
发明人： Peter Selmeier , Maximilian Pitschi
IPC分类号： H03H964
CPC分类号： H03H9/6483
摘要： A surface acoustic wave (SAW) filter having an improved edge steepness includes at least three resonators connected in series and/or parallel with one another. An edge steepness of a pass band is improved if a plurality of resonators with different finger periodicities of interdigital transducers are provided.
摘要翻译： 具有改善的边缘陡度的表面声波（SAW）滤波器包括彼此串联和/或并联连接的至少三个谐振器。 如果提供具有叉指换能器的不同手指周期性的多个谐振器，则通带的边缘陡度得到改善。
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16.发明申请MICRO-ACOUSTIC FILTER HAVING COMPENSATED CROSS-TALK AND METHOD FOR COMPENSATION 有权具有补偿交叉口的微声滤波器和补偿方法公开(公告)号：US20120326808A1
公开(公告)日：2012-12-27
申请号：US13576653
申请日：2011-02-14
IPC分类号： H03H9/25
CPC分类号： H03H9/02874 , H03H9/02913 , H03H9/02952 , H03H9/02992 , H03H9/6493
摘要： The invention relates to a micro-acoustic filter having a first and a second converter, in which the electromagnetic and capacitive cross-talk between the first and second converters is compensated for by providing additional coupling capacitors and additional current loops. Additional coupling capacitors and current loops are arranged in such a manner that they can counteract the sign of the natural coupling specified by the design and thus completely compensate for said coupling.
摘要翻译： 本发明涉及一种具有第一和第二转换器的微声滤波器，其中第一和第二转换器之间的电磁和电容串扰通过提供额外的耦合电容器和附加的电流回路被补偿。 额外的耦合电容器和电流回路以这样的方式布置，使得它们可以抵消由设计指定的自然耦合的符号，从而完全补偿所述耦合。
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公开(公告)号：US07477117B2
公开(公告)日：2009-01-13
申请号：US10559508
申请日：2004-04-16
IPC分类号： H03H9/00
CPC分类号： H03H9/0057 , H03H9/0061 , H03H9/0071 , H03H9/0076 , H03H9/02913 , H03H9/14588
摘要： A surface acoustic wave (SAW) filter includes a piezoelectric substrate, and acoustic tracks on the piezoelectric substrate. The acoustic tracks are adjacent and electrically interconnected. The acoustic tracks include electro-acoustic transducers. The electro-acoustic transducers include an input transducer and an output transducer. The SAW filter also includes a shielding structure that is metallic and that is connected to ground. The shielding structure is between the acoustic tracks. The shielding structure shields a first electro-acoustic transducer in a first acoustic track from a second electro-acoustic transducer in a second acoustic track.
摘要翻译： 表面声波（SAW）滤波器包括压电基片和压电基片上的声轨。 声轨相邻并电互连。 声轨包括电声换能器。 电声换能器包括输入换能器和输出换能器。 SAW滤波器还包括金属的并且连接到地面的屏蔽结构。 屏蔽结构位于声轨之间。 屏蔽结构将第一声轨道中的第一电声换能器与第二声道中的第二电声换能器屏蔽。
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公开(公告)号：US06246302B1
公开(公告)日：2001-06-12
申请号：US09254944
申请日：1999-03-19
申请人： Peter Müller , Maximilian Pitschi
发明人： Peter Müller , Maximilian Pitschi
IPC分类号： H03H964
CPC分类号： H03H9/14517 , H03H9/14526 , H03H9/6483
摘要： A reactance filter, particularly in a branching circuit (ladder type),with surface wave resonators wherein omission weighted normal finger transducers are employed between reflectors such that the arrangement and plurality of the active fingers of the interdigital transducer are particularly formed for changing the capacitance relationship (static to dynamic capacitance) such that a narrow filter bandwidth is achieved.
摘要翻译： 一种电抗滤波器，特别是在分支电路（梯型）中，具有表面波谐振器，其中在反射器之间采用省略加权的普通手指换能器，使得叉指式换能器的配置和多个活动指针特别地形成用于改变电容关系 （静态到动态电容），使得实现窄的滤波器带宽。
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