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1. 发明授权

US5818313A Multilayer lowpass filter with single point ground plane configuration 失效
标题翻译：具有单点接地平面配置的多层低通滤波器
公开(公告)号：US5818313A
公开(公告)日：1998-10-06
申请号：US792588
申请日：1997-01-31
申请人： John C. Estes , Richard Kommrusch , Rong Fong Huang
发明人： John C. Estes , Richard Kommrusch , Rong Fong Huang
IPC分类号： H01P1/203 , H03H7/01 , H01P1/20
CPC分类号： H01P1/2039 , H03H7/0115 , H03H2001/0085
摘要： A laminated lowpass filter (100) is disclosed. The filter (100) has: a stack of dielectric substrates (301-312) having a ground via (118); a pi network coupled between an input (202) and an output (202'); a first leg comprising a first transmission line (608) and a first capacitance (C1) connected to a top ground plane (GP1); a second leg comprising a second transmission line (608') and a second capacitance (C2) connected to a bottom ground plane (GP2); a middle leg including a transmission line (606) is between the first and second leg; the single point ground plane configuration prevents ground loops and minimizes the passage of stray signals through the laminated lowpass filter (100).
摘要翻译：公开了层叠低通滤波器（100）。过滤器（100）具有：具有接地通孔（118）的电介质基板堆叠（301-312）; 耦合在输入（202）和输出（202'）之间的pi网络; 第一支腿，包括连接到顶部接地平面（GP1）的第一传输线（608）和第一电容（C1）; 第二腿包括连接到底部接地平面（GP2）的第二传输线（608'）和第二电容（C2）; 包括传输线（606）的中间腿在第一和第二腿之间; 单点接地平面配置防止接地回路并使通过层叠低通滤波器（100）的杂散信号的通过最小化。

2. 发明申请

US20060145782A1 Multiplexers employing bandpass-filter architectures 有权
公开(公告)号：US20060145782A1
公开(公告)日：2006-07-06
申请号：US11029664
申请日：2005-01-04
申请人： Kai Liu , Richard Kommrusch
发明人： Kai Liu , Richard Kommrusch
IPC分类号： H03H7/46
CPC分类号： H03H7/463 , H03H2001/0085
摘要： A multiplexer, such as a diplexer, is delineated. The multiplexer may be employed in a communications system that may communicate in multiple frequency bands within a predefined range of frequencies, e.g., 2400 MHz-4900 MHz. The communications system may operate in a network, such as a wireless local area network, without significant interference from signals used by a cellular/mobile telephone system. The multiplexer may include multiple channels with bandpass filters that may be formed with lumped inductors and lumped capacitors. In at least one of the channels, the bandpass filter may be formed by combining at least one lowpass filter with at least one highpass filter.

3. 发明授权

US07606184B2 Multiplexers employing bandpass-filter architectures 有权
标题翻译：采用带通滤波器架构的多路复用器
公开(公告)号：US07606184B2
公开(公告)日：2009-10-20
申请号：US11029664
申请日：2005-01-04
申请人： Kai Liu , Richard Kommrusch
发明人： Kai Liu , Richard Kommrusch
IPC分类号： H04L5/00
CPC分类号： H03H7/463 , H03H2001/0085
摘要： A multiplexer, such as a diplexer, is delineated. The multiplexer may be employed in a communications system that may communicate in multiple frequency bands within a predefined range of frequencies, e.g., 2400 MHz-4900 MHz. The communications system may operate in a network, such as a wireless local area network, without significant interference from signals used by a cellular/mobile telephone system. The multiplexer may include multiple channels with bandpass filters that may be formed with lumped inductors and lumped capacitors. In at least one of the channels, the bandpass filter may be formed by combining at least one lowpass filter with at least one highpass filter.
摘要翻译：已经描述了诸如双工器之类的多路复用器。多路复用器可以用在可以在预定范围的频率（例如2400MHz-4900MHz）内在多个频带中通信的通信系统中。通信系统可以在诸如无线局域网的网络中操作，而不会由蜂窝/移动电话系统使用的信号的显着干扰。多路复用器可以包括具有带通滤波器的多个通道，其可以形成有集总电感器和集总电容器。在至少一个通道中，可以通过将至少一个低通滤波器与至少一个高通滤波器组合来形成带通滤波器。

4. 发明授权

US5742210A Narrow-band overcoupled directional coupler in multilayer package 失效
标题翻译：多层封装中窄带超耦合定向耦合器
公开(公告)号：US5742210A
公开(公告)日：1998-04-21
申请号：US799516
申请日：1997-02-12
申请人： Rahul Chaturvedi , Richard Kommrusch
发明人： Rahul Chaturvedi , Richard Kommrusch
IPC分类号： H01P5/18
CPC分类号： H01P5/185 , H01P5/187
摘要： A narrow-band overcoupled directional coupler 300 in a multilayer package is provided. The directional coupler 300 has a laminated structure including a stack of dielectric substrates (301-310) with a primary and a secondary transmission line on the layers of the dielectric substrates. The primary transmission line (A) and the secondary transmission line (B) are coupled by a combination of edge type coupling in which the primary and secondary transmission lines are substantially parallel with each other on a major surface of one of the dielectric substrates (307 for example) and broadside type coupled in which at least portions of the primary transmission line and secondary transmission line are substantially vertically aligned through adjacent dielectric substrates (303, 305 for example). The primary and secondary transmission lines are also substantially overcoupled to provide a predetermined off-center frequency which is different from an overcoupled center frequency.
摘要翻译：提供了多层封装中的窄带过耦合定向耦合器300。定向耦合器300具有叠层结构，其包括在电介质基底的各层上具有初级和次级传输线的电介质基片叠层（301-310）。主传输线（A）和二次传输线（B）通过边缘型耦合的组合耦合，其中主传输线和次传输线在一个电介质基板（307）的主表面上彼此基本平行例如）和宽边型耦合，其中初级传输线和次级传输线的至少一部分基本上垂直对准通过相邻的电介质基板（例如，303,305）。主传输线和次传输线也基本上过耦合以提供与过耦合的中心频率不同的预定偏心频率。

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