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公开(公告)号：US07777597B2
公开(公告)日：2010-08-17
申请号：US11666438
申请日：2005-09-30
申请人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
发明人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
CPC分类号： H03H9/6409 , H03F3/191 , H03F3/60 , H03F3/602 , H03H9/542 , H03H9/547 , H03H9/706 , H03H9/74
摘要： Band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.
摘要翻译： 公开了带阻滤波器。 带阻滤波器包括第一声谐振器和第二声谐振器，每个谐振器具有适于基本上在限定抑制频带的相应谐振频率谐振的并联谐振器或适于基本上以相应的反谐振频率反共振的串联谐振器 定义拒绝频带。 这些谐振器通过移相器连接，该移相器将阻抗相移约为45°至135°。 本文公开的带阻滤波器的示例性应用包括作为用于无线通信系统的基站功率放大器的级间带宽滤波器的实现，作为无线通信终端的双工器中的无线电频带拒绝滤波器，以及 低噪声放大器输入级。
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公开(公告)号：US08004371B2
公开(公告)日：2011-08-23
申请号：US12856757
申请日：2010-08-16
申请人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
发明人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
CPC分类号： H03H9/6409 , H03F3/191 , H03F3/60 , H03F3/602 , H03H9/542 , H03H9/547 , H03H9/706 , H03H9/74
摘要： Distributed band reject filters are disclosed. A first radio frequency band reject filter is disclosed having a splitter having a first input port, a first output port and a second output port, the splitter being operable on an input signal applied to the first input port to provide a respective output signal proportional to the input signal at each of the first and second output ports, the output signals having a phase shift between 45 degrees and 135 degree with respect to the input signal, as well as first, second and third acoustic resonators coupled respectively to the first input port, the first output port and the second output port. A second radio frequency band reject filter is disclosed having a combiner having a first input port, a second input port and a first output port, the combiner being operable on an input signals applied to the first input port and the second input port to provide a respective output signal proportional to the input signals at the first output port, the output signal having a phase shift between 45 degrees and 135 degree with respect to the input signals, as well as first, second and third acoustic resonators coupled respectively to the first input port, the second input port and the first output port. Also disclosed are amplifiers that comprise such radio frequency band reject filters.
摘要翻译： 公开了分布式带阻滤波器。 公开了一种具有分离器的第一无线电频带滤波器，其具有第一输入端口，第一输出端口和第二输出端口，所述分配器可在施加到第一输入端口的输入信号上操作，以提供与 在第一和第二输出端口中的每一个处的输入信号，输出信号相对于输入信号具有在45度和135度之间的相移，以及分别耦合到第一输入端口的第一，第二和第三声谐振器 ，第一个输出端口和第二个输出端口。 公开了一种具有组合器的第二射频抑制滤波器，该组合器具有第一输入端口，第二输入端口和第一输出端口，所述组合器可在施加到第一输入端口和第二输入端口的输入信号上操作， 输出信号与第一输出端口处的输入信号成比例，输出信号相对于输入信号具有在45度和135度之间的相移，以及分别耦合到第一输入端口的第一，第二和第三声谐振器 ，第二输入端口和第一输出端口。 还公开了包括这种无线电频带拒绝滤波器的放大器。
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公开(公告)号：US20120147978A1
公开(公告)日：2012-06-14
申请号：US13400426
申请日：2012-02-20
申请人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
发明人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
IPC分类号： H04L25/00
CPC分类号： H04L5/06
摘要： The present invention provides combining and separation circuitry, which allows multiple signals in different frequency bands to travel in either direction over a single cable and be combined and separated as desired. In one embodiment, the combining and separation circuitry includes first, second, third, and fourth ports. The first port is configured to send or receive signals in a first frequency band, the second port is configured to send or receive signals in a second frequency band, and the third port is configured to send or receive DC signals, baseband signals, or a combination thereof. The fourth port is configured to be coupled to a cable in which the signals in the first and second frequency bands, as well as the DC and/or baseband signals, can be sent in either direction.
摘要翻译： 本发明提供组合和分离电路，其允许不同频带中的多个信号在单个电缆上沿任一方向行进，并根据需要组合和分离。 在一个实施例中，组合和分离电路包括第一，第二，第三和第四端口。 第一端口被配置为在第一频带中发送或接收信号，第二端口被配置为在第二频带中发送或接收信号，并且第三端口被配置为发送或接收DC信号，基带信号或 的组合。 第四端口被配置为耦合到电缆，其中第一和第二频带中的信号以及DC和/或基带信号可以在任一方向上发送。
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公开(公告)号：US08207799B2
公开(公告)日：2012-06-26
申请号：US13167366
申请日：2011-06-23
申请人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
发明人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
CPC分类号： H03H9/6409 , H03F3/191 , H03F3/60 , H03F3/602 , H03H9/542 , H03H9/547 , H03H9/706 , H03H9/74
摘要： Distributed band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.
摘要翻译： 公开了分布式带阻滤波器。 带阻滤波器包括第一声谐振器和第二声谐振器，每个谐振器具有适于基本上在限定抑制频带的相应谐振频率谐振的并联谐振器或适于基本上以相应的反谐振频率反共振的串联谐振器 定义拒绝频带。 这些谐振器通过移相器连接，该移相器将阻抗相移约为45°至135°。 本文公开的带阻滤波器的示例性应用包括作为用于无线通信系统的基站功率放大器的级间带宽滤波器的实现，作为无线通信终端的双工器中的无线电频带拒绝滤波器，以及 低噪声放大器输入级。
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公开(公告)号：US08135086B1
公开(公告)日：2012-03-13
申请号：US10914589
申请日：2004-08-09
申请人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
发明人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
IPC分类号： H04L27/10
CPC分类号： H04L5/06
摘要： The present invention provides combining and separation circuitry, which allows multiple signals in different frequency bands to travel in either direction over a single cable and be combined and separated as desired. In one embodiment, the combining and separation circuitry includes first, second, third, and fourth ports. The first port is configured to send or receive signals in a first frequency band, the second port is configured to send or receive signals in a second frequency band, and the third port is configured to send or receive DC signals, baseband signals, or a combination thereof. The fourth port is configured to be coupled to a cable in which the signals in the first and second frequency bands, as well as the DC and/or baseband signals, can be sent in either direction.
摘要翻译： 本发明提供组合和分离电路，其允许不同频带中的多个信号在单个电缆上沿任一方向行进，并根据需要组合和分离。 在一个实施例中，组合和分离电路包括第一，第二，第三和第四端口。 第一端口被配置为在第一频带中发送或接收信号，第二端口被配置为在第二频带中发送或接收信号，并且第三端口被配置为发送或接收DC信号，基带信号或 的组合。 第四端口被配置为耦合到电缆，其中第一和第二频带中的信号以及DC和/或基带信号可以在任一方向上发送。
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公开(公告)号：US08411763B2
公开(公告)日：2013-04-02
申请号：US13400426
申请日：2012-02-20
申请人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
发明人： Somsack Sychaleun , Steve Beaudin , Chun-Yun Jian
IPC分类号： H04B3/00
CPC分类号： H04L5/06
摘要： The present invention provides combining and separation circuitry, which allows multiple signals in different frequency bands to travel in either direction over a single cable and be combined and separated as desired. In one embodiment, the combining and separation circuitry includes first, second, third, and fourth ports. The first port is configured to send or receive signals in a first frequency band, the second port is configured to send or receive signals in a second frequency band, and the third port is configured to send or receive DC signals, baseband signals, or a combination thereof. The fourth port is configured to be coupled to a cable in which the signals in the first and second frequency bands, as well as the DC and/or baseband signals, can be sent in either direction.
摘要翻译： 本发明提供组合和分离电路，其允许不同频带中的多个信号在单个电缆上沿任一方向行进，并根据需要组合和分离。 在一个实施例中，组合和分离电路包括第一，第二，第三和第四端口。 第一端口被配置为在第一频带中发送或接收信号，第二端口被配置为在第二频带中发送或接收信号，并且第三端口被配置为发送或接收DC信号，基带信号或 的组合。 第四端口被配置为耦合到电缆，其中第一和第二频带中的信号以及DC和/或基带信号可以在任一方向上发送。
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公开(公告)号：US20080129411A1
公开(公告)日：2008-06-05
申请号：US11666438
申请日：2005-09-30
申请人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
发明人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun
CPC分类号： H03H9/6409 , H03F3/191 , H03F3/60 , H03F3/602 , H03H9/542 , H03H9/547 , H03H9/706 , H03H9/74
摘要： Band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.
摘要翻译： 公开了带阻滤波器。 带阻滤波器包括第一声谐振器和第二声谐振器，每个谐振器具有适于基本上在限定抑制频带的相应谐振频率谐振的并联谐振器或适于基本上以相应的反谐振频率反共振的串联谐振器 定义拒绝频带。 这些谐振器通过移相器连接，该移相器将阻抗相移约为45°至135°。 本文公开的带阻滤波器的示例性应用包括作为用于无线通信系统的基站功率放大器的级间带宽滤波器的实现，作为无线通信终端的双工器中的无线电频带拒绝滤波器，以及 低噪声放大器输入级。
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公开(公告)号：US06924715B2
公开(公告)日：2005-08-02
申请号：US10663549
申请日：2003-09-16
申请人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun , Yuxing Zhang
发明人： Steve Beaudin , Chun-Yun Jian , Somsack Sychaleun , Yuxing Zhang
IPC分类号： H03F3/189 , H03F3/20 , H03H9/145 , H03H9/58 , H03H9/60 , H03H9/64 , H04Q20060101 , H04Q7/30 , H03H9/205 , H03F1/08 , H03H9/54 , H03H9/72
CPC分类号： H03H9/6409 , H03H9/14547 , H03H9/14558 , H03H9/14567 , H03H9/547 , H03H9/605 , H03H9/6433 , H03H9/6463 , H03H9/6476 , H03H9/6483 , H03H9/6493
摘要： Acoustic resonators such as surface acoustic wave (SAW) devices and thin film bulk acoustic resonators (FBAR) can be configured to produce a band reject filter. Such a filter overcomes the insertion loss and power handling limitations of conventional band pass configurations and as such can be used in power amplifier and duplexer applications.
摘要翻译： 诸如表面声波（SAW）器件和薄膜体声波谐振器（FBAR）的声谐振器可以被配置成产生带阻滤波器。 这种滤波器克服了传统带通配置的插入损耗和功率处理限制，并且因此可以用于功率放大器和双工器应用中。
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公开(公告)号：US20050093650A1
公开(公告)日：2005-05-05
申请号：US11011036
申请日：2004-12-15
申请人： Chun-Yun Jian , Steve Beaudin , Somsack Sychaleun
发明人： Chun-Yun Jian , Steve Beaudin , Somsack Sychaleun
CPC分类号： H03H9/6496 , H03H9/0042 , H03H9/02779 , H03H9/0285 , H03H9/02881 , H03H9/14547 , H03H9/14558 , H03H9/14567
摘要： Very low passband ripple is provided in a wide bandwidth high frequency SAW FIR filter using slanted finger IDTs by one or more of three techniques: cancelling regenerated SAWs at parallel-connected input IDTs of two SAW filters which are similar except for a quarter-wavelength difference in spacing of the input and output IDTs, this difference varying with wavelength across the IDT aperture; shaping edges of shield electrodes to provide quarter-wavelength differences in, and hence cancellation of, SAWs reflected at the edges, the differences varying with wavelength across the IDT aperture; and making pairs of slanted shield electrodes symmetrical to compensate for refraction of SAWS by the shield electrodes.
摘要翻译： 通过三种技术中的一种或多种的倾斜手指IDT，在宽带宽高频SAW FIR滤波器中提供非常低的通带纹波：在两个SAW滤波器的并联输入IDT之间取消再生SAW，除了四分之一波长差 在输入和输出IDT的间隔中，该差异随IDT孔径上的波长而变化; 形成屏蔽电极的边缘，以提供在边缘反射的SAW的四分之一波长差异并因此消除SAW，该差异随IDT孔径上的波长而变化; 并使成对的倾斜屏蔽电极对称，以补偿屏蔽电极对SAWS的折射。
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公开(公告)号：US06710677B2
公开(公告)日：2004-03-23
申请号：US10074310
申请日：2002-02-12
IPC分类号： H03H9205
CPC分类号： H03H9/6476 , H03H9/547 , H03H9/605 , H03H9/6409 , H03H9/6463 , H03H9/6483
摘要： Acoustic resonators such as surface acoustic wave (SAW) devices and thin film bulk acoustic resonators (FBAR) can be configured to produce a band reject filter. Such a filter overcomes the insertion loss and power handling limitations of conventional band pass configurations and as such can be used in power amplifier and duplexer applications.
摘要翻译： 诸如表面声波（SAW）器件和薄膜体声波谐振器（FBAR）的声谐振器可以被配置成产生带阻滤波器。 这种滤波器克服了传统带通配置的插入损耗和功率处理限制，并且因此可以用于功率放大器和双工器应用中。
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