公开(公告)号：US4673901A

公开(公告)日：1987-06-16

申请号：US788877

申请日：1985-10-18

申请人： Ekkehard Ehrmann-Falkenau ,  Richard Veith ,  Wolfgang Till

发明人： Ekkehard Ehrmann-Falkenau ,  Richard Veith ,  Wolfgang Till

IPC分类号： H03H9/145 ,  H03H9/64

CPC分类号： H03H9/64 ,  H03H9/1452

摘要： A surface wave filter having an interdigital structure in which last active fingers of a first comb structure, which is to be connected to ground, extend as close as possible to a busbar of an opposite comb structure. Interference signals based on the discontinuity of the end of the interdigital structure are eliminated.

摘要翻译： 具有叉指结构的表面波滤波器，其中要连接到地面的第一梳状结构的最后活动指状物尽可能靠近相对梳状结构的母线延伸。 消除了基于叉指结构的不连续性的干扰信号。

公开(公告)号：US20140010122A1

公开(公告)日：2014-01-09

申请号：US13995941

申请日：2011-12-16

申请人： Tobias Krems ,  Wolfgang Till ,  Ravi Challa

发明人： Tobias Krems ,  Wolfgang Till ,  Ravi Challa

IPC分类号： H03H7/01

CPC分类号： H03H7/0115 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725

摘要： A reactance filter comprising suppression in the stop band comprises an input connection (1) for applying an input signal (ES), an output connection (A100) for outputting an output signal (TS), at least series resonator (11, 12, 13, 14), which is connected in a signal path (SP) between the input connection (1) and the output connection (A100), a parallel resonator (21), which is connected between the signal path (SP) and a connection (M) in order to apply a reference potential, and an inductor (31), which is connected in series to the parallel resonator (21). A capacitor (50) is connected by means of one connection (A50a) between the at least one parallel resonator (21) and the inductor (31) and by means of the additional connection (A50b) to the output connection (A100). By connecting the reactance filter as a transmission filter in a duplexer component, the isolation in the receiving band of the duplexer component can be improved.

摘要翻译： 包括阻带中的抑制的电抗滤波器包括用于施加输入信号（ES）的输入连接（1），用于输出输出信号（TS）的输出连接（A100），至少串联谐振器（11,12,13 ，14），其连接在输入连接（1）和输出连接（A100）之间的信号路径（SP）中，并联谐振器（21），其连接在信号路径（SP）和连接 M），以及施加参考电位的电感器（31）和与并联谐振器（21）串联连接的电感器（31）。 电容器（50）通过至少一个并联谐振器（21）和电感器（31）之间的一个连接（A50a）连接，并通过附加连接（A50b）连接到输出连接（A100）。 通过将作为发送滤波器的电抗滤波器连接在双工器部件中，可以提高双工器部件的接收频带中的隔离。

公开(公告)号：US09294065B2

公开(公告)日：2016-03-22

申请号：US13995941

申请日：2011-12-16

申请人： Tobias Krems ,  Wolfgang Till ,  Ravi Challa

发明人： Tobias Krems ,  Wolfgang Till ,  Ravi Challa

IPC分类号： H03H7/01 ,  H03H9/64 ,  H03H9/72 ,  H03H9/60 ,  H03H9/70

CPC分类号： H03H7/0115 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725

摘要： A reactance filter comprising suppression in the stop band comprises an input connection for applying an input signal, an output connection for outputting an output signal, at least series resonator, which is connected in a signal path between the input connection and the output connection, a parallel resonator, which is connected between the signal path and a connection in order to apply a reference potential, and an inductor, which is connected in series to the parallel resonator. A capacitor is connected by means of one connection between the at least one parallel resonator and the inductor and by means of the additional connection to the output connection. By connecting the reactance filter as a transmission filter in a duplexer component, the isolation in the receiving band of the duplexer component can be improved.

摘要翻译： 包括在阻带中的抑制的电抗滤波器包括用于施加输入信号的输入连接，用于输出输出信号的输出连接，连接在输入连接和输出连接之间的信号路径中的至少串联谐振器， 并联谐振器，其连接在信号路径和连接之间以施加参考电位;以及电感器，其与并联谐振器串联连接。 电容器通过至少一个并联谐振器和电感器之间的一个连接并通过与输出连接的附加连接来连接。 通过将作为发送滤波器的电抗滤波器连接在双工器部件中，可以提高双工器部件的接收频带中的隔离。