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1. 发明申请

US20050068125A1 Symmetrically-operating reactance filter 审中-公开
标题翻译：对称工作电抗滤波器
公开(公告)号：US20050068125A1
公开(公告)日：2005-03-31
申请号：US10499183
申请日：2002-12-05
申请人： Michael Unterberger , Pasi Tikka
发明人： Michael Unterberger , Pasi Tikka
IPC分类号： H03H9/64 , H03H9/00 , H03H9/17 , H03H9/54 , H03H9/58
CPC分类号： H03H9/0028 , H03H9/0095
摘要： For a symmetrically working reactance filter with steep flanks, a low pass-band ripple, and good near and remote selection, it is recommended that partial circuit structures (A, B) of symmetrically working ladder-type filters and symmetrically working lattice-type filters are combined into a new filter. In this, reactance elements are used that are realized by the most varied techniques, such as, for example, the SAW technique or as BAW resonators.
摘要翻译：对于具有陡峭侧面的对称工作电抗滤波器，低通带纹波和良好的近距离和远程选择，建议对称加工梯形滤波器和对称工作格子型滤波器的部分电路结构（A，B）被组合成一个新的过滤器。在此，使用通过最多变化的技术实现的电抗元件，例如SAW技术或作为BAW谐振器。

2. 发明授权

US07616079B2 Bulk acoustic wave resonator and circuit comprising same 有权
标题翻译：体声波谐振器和包括其的电路
公开(公告)号：US07616079B2
公开(公告)日：2009-11-10
申请号：US10530507
申请日：2003-09-18
申请人： Pasi Tikka , Ralph Stömmer , Edgar Schmidhammer , Michael Unterberger
发明人： Pasi Tikka , Ralph Stömmer , Edgar Schmidhammer , Michael Unterberger
IPC分类号： H03H9/205 , H03H9/54
CPC分类号： H03H9/583
摘要： The invention relates to a resonator operating with bulk acoustic waves (BAW resonator, BAW=Bulk Acoustic Wave) and band-pass filters constructed of such resonators. To increase the edge steepness of the transmission band of a BAW band-pass filter, the invention proposes reducing the effective coupling of a BAW resonator by using the connection in parallel of a BAW resonator and a capacitor instead of only one resonator. In addition, to increase the edge steepness of the transmission band, the use of a connection of coupled BAW resonators in the serial branch of a filter circuit with another resonator or resonator stack in the parallel branch of the filter circuit is proposed, the additional resonator or resonator stack being connected to the center electrode of the resonator stack specified initially.
摘要翻译：本发明涉及一种使用体声波（BAW谐振器，BAW =体声波）和由这种谐振器构成的带通滤波器的谐振器。为了增加BAW带通滤波器的传输频带的边缘陡度，本发明通过使用与BAW谐振器和电容器并联的连接而不是只有一个谐振器来降低BAW谐振器的有效耦合。此外，为了增加传输频带的边缘陡度，提出了在滤波器电路的并联支路中使用与滤波器电路的串行分支中的另一谐振器或谐振器堆叠的耦合的BAW谐振器的连接，附加谐振器或谐振器堆叠连接到最初指定的谐振器叠层的中心电极。

3. 发明授权

US06917261B2 Component operating with bulk acoustic waves, and having asymmetric/symmetrical circuitry 有权
标题翻译：组件用体声波操作，并具有不对称/对称电路
公开(公告)号：US06917261B2
公开(公告)日：2005-07-12
申请号：US10728462
申请日：2003-12-05
申请人： Michael Unterberger
发明人： Michael Unterberger
IPC分类号： H03H9/00 , H03H9/58 , H03H9/205 , H03H9/54 , H03H11/32
CPC分类号： H03H9/589 , H03H9/0095 , H03H9/584
摘要： A component operating with bulk acoustic waves has two Bulk Acoustic Wave (BAW) resonators that are stacked and are acoustically coupled to one another, with a first resonator being connected to an asymmetric port, and a second resonator being connected to a symmetrical port. The acoustic coupling is provided by a partially permeable coupling layer system, which has an alternating sequence of at least two λ/4 mirror layers with different acoustic impedance. The coupling layer system furthermore has a compensation layer, which has an approximate thickness of λ/8. The compensation layer according to the invention makes it possible to match any discrepancy in the phase difference (which is caused by reflections on the mirror layers) from the predetermined 180° between the connections of the symmetrical port to approximately 180°.
摘要翻译：使用体声波操作的部件具有堆叠并彼此声学耦合的两个体声波（BAW）谐振器，第一谐振器连接到非对称端口，第二谐振器连接到对称端口。声耦合由部分可渗透的耦合层系统提供，该系统具有至少两个具有不同声阻抗的λ/ 4镜层的交替序列。耦合层系统还具有补偿层，其具有λ/ 8的近似厚度。根据本发明的补偿层使得可以将对称端口的连接之间的预定180°的相位差（由反射镜层上的反射引起的）的任何差异与约180°的连接相匹配。

4. 发明授权

US07126253B2 Reactance filter having an improved edge steepness 有权
标题翻译：具有改善的边缘陡度的电抗滤波器
公开(公告)号：US07126253B2
公开(公告)日：2006-10-24
申请号：US10483928
申请日：2002-05-16
申请人： Michael Unterberger
发明人： Michael Unterberger
IPC分类号： H03H9/58 , H01L41/107
CPC分类号： H03H9/605
摘要： A reactance filter, which is constructed from BAW resonators, has at least one basic element that has a first resonator in a first branch and a second resonator in a second branch. In one branch, there is situated a resonator having a greater ratio of dynamic to static capacitance than in the second branch, so that a filter is obtained having a resulting passband in which one edge is set steeper than the other edge. The selection of the edge that is to be set steeply takes place through the allocation of the first branch to the serial or to the parallel branch.
摘要翻译：由BAW谐振器构成的电抗滤波器具有至少一个基本元件，其在第一支路中具有第一谐振器，在第二支路中具有第二谐振器。在一个分支中，存在具有比在第二分支中更大的动态和静态电容比的谐振器，从而获得具有所得到的通带的滤波器，其中一个边缘被设置成比另一个边缘更陡。通过将第一分支分配给串行或并行分支，将要设置的边缘的选择发生。

5. 发明申请

US20060164183A1 Bulk acoustic wave resonator and circuit comprising same 有权
公开(公告)号：US20060164183A1
公开(公告)日：2006-07-27
申请号：US10530507
申请日：2003-09-18
申请人： Pasi Tikka , Ralph Stommer , Edgar Schmidhammer , Michael Unterberger
发明人： Pasi Tikka , Ralph Stommer , Edgar Schmidhammer , Michael Unterberger
IPC分类号： H03H9/70 , H03H9/58
CPC分类号： H03H9/583
摘要： The invention relates to a resonator operating with bulk acoustic waves (BAW resonator, BAW=Bulk Acoustic Wave) and band-pass filters constructed of such resonators. To increase the edge steepness of the transmission band of a BAW band-pass filter, the invention proposes reducing the effective coupling of a BAW resonator by using the connection in parallel of a BAW resonator and a capacitor instead of only one resonator. In addition, to increase the edge steepness of the transmission band, the use of a connection of coupled BAW resonators in the serial branch of a filter circuit with another resonator or resonator stack in the parallel branch of the filter circuit is proposed, the additional resonator or resonator stack being connected to the center electrode of the resonator stack specified initially.

6. 发明授权

US06919781B2 Surface wave filter comprising reactance elements 有权
标题翻译：包括电抗元件的表面波滤波器
公开(公告)号：US06919781B2
公开(公告)日：2005-07-19
申请号：US10204283
申请日：2001-02-02
申请人： Thomas Baier , Michael Unterberger
发明人： Thomas Baier , Michael Unterberger
IPC分类号： H01L41/09 , H01L41/18 , H03H9/00 , H03H9/145 , H03H9/64
CPC分类号： H03H9/0057 , H03H9/0038 , H03H9/0071 , H03H9/14591 , H03H9/6463 , H03H9/6483
摘要： Proposed is a SAW HF filter with reactance elements, which is particularly suitable for mobile radio. The filter is balanced on both sides, is electrically symmetric, and comprises a four-pole reactance series element, which can be formed from two two-pole pole reactance elements or from a four-pole reactance element, and a resonator. One bar of the respective reactance elements is connected to the input side of the filter, while the other bar is connected to the output side of the filter.
摘要翻译：提出了一种具有电抗元件的SAW HF滤波器，特别适用于移动无线电。滤波器在两侧是平衡的，是电对称的，并且包括四极电抗串联元件，其可以由两个两极的电抗元件或四极电抗元件和谐振器形成。各个电抗元件的一个条连接到滤波器的输入侧，而另一个条连接到滤波器的输出侧。

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