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公开(公告)号：US11955682B2
公开(公告)日：2024-04-09
申请号：US17789416
申请日：2020-12-30
发明人： Yongbin Liu , Jianlan Li , Mengyang Jia , Ying Li
CPC分类号： H01P1/212 , H01P1/2002 , H01P1/2088 , H01P5/04
摘要： A ceramic waveguide filter, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, a ceramic waveguide filter comprises a body (1) that is made of a ceramic material and that has a plurality of resonators each including a blind hole (101). The blind holes (101) of two of the resonators open at a first surface of the body (1) and extend toward an opposite second surface of the body (1). Capacitive coupling between the two resonators is achieved by a coupling structure (201) on/in a substrate (2), to which the body (1) is attached at the side of the second surface.
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公开(公告)号：US20180269556A1
公开(公告)日：2018-09-20
申请号：US15548205
申请日：2016-01-28
申请人： Kyu Yong KIM
发明人： Kyu Yong KIM
摘要： A multiplexer through which different frequency bands pass, including: a housing that includes an I/O terminal and a channel group which inputs and/or outputs frequencies of different ranges, includes a plurality of connectors, and is separated from the I/O terminal; a low-pass filter provided inside the housing, electrically connected to the I/O terminal, and formed of a distributed constant type; a common capacitor provided in parallel to the low-pass filter and electrically connected to a contact point between the I/O terminal and the low-pass filter; and a cavity filter which includes a plurality of cavities which are formed in the housing and a resonator which is respectively installed in the cavities.
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公开(公告)号：US20180034125A1
公开(公告)日：2018-02-01
申请号：US15547998
申请日：2015-03-01
发明人： Per Ligander , Lars Bolander , Anatoli Deleniv , Ove Persson
CPC分类号： H01P1/2138 , H01P1/20 , H01P1/2002 , H01P1/207 , H01P1/211 , H01P1/212 , H01Q1/246 , H01Q5/50 , H01Q13/085
摘要： It is provided a waveguide E-plane band-pass filter comprising a tubular, electrically conductive waveguide body. An electrically conductive foil is arranged in the waveguide body and extending along a longitudinal direction of the waveguide body, the foil comprising a plurality of resonator openings. Furthermore, the waveguide body comprises at least one ridge protruding from an inner wall of the waveguide body and extending longitudinally along the longitudinal direction of the waveguide body. The foil is in mechanical contact with said at least one ridge and arranged to divide an inner volume of the waveguide body into two portions. It is also provided a diplexer, a radio transceiver, and a method for filtering a signal using such a filter.
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公开(公告)号：US09859601B2
公开(公告)日：2018-01-02
申请号：US14681786
申请日：2015-04-08
发明人： Chen-Hsiang Chen
CPC分类号： H01P1/212 , H01P1/203 , H01P1/20381 , H01P1/2039 , H03H7/0115 , H03H7/09 , H03H7/427 , H03H2001/0085
摘要： A harmonics suppression filter includes a main circuit, a first inner circuit, a first outer circuit, a first inner node and a first outer node. The first inner circuit, the first outer circuit and the main circuit are in the same layer of the base board. Meanwhile, the first inner circuit is located inside of the main circuit. There is an inner gap between the first inner circuit and the main circuit. The first outer circuit is located outside of the main circuit. There is an outer gap between the first outer circuit and the main circuit. The first inner node is located in the inner gap to couple the first inner circuit with the main circuit. The first outer node is located in the outer gap to couple the first outer circuit with the main circuit.
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公开(公告)号：US20140340176A1
公开(公告)日：2014-11-20
申请号：US14449729
申请日：2014-08-01
发明人： Ekrem Oran
IPC分类号： H01P1/203
CPC分类号： H01P1/20336 , H01P1/2039 , H01P1/212 , H01P7/082
摘要： A microstrip combline bandpass filter includes an input port, an output port, and a plurality of resonators each including a microstrip line having a first end and a second end. One of the plurality of resonators is connected to the input port, and another of the plurality of resonators is connected to the output port. The filter also includes a plurality of pairs of series coupled varactors. The first end of each microstrip line is coupled to one of the pairs of varactors, and the second end of each microstrip line is coupled to ground.
摘要翻译： 微带组合带通滤波器包括输入端口，输出端口和多个谐振器，每个谐振器包括具有第一端和第二端的微带线。 多个谐振器中的一个连接到输入端口，并且多个谐振器中的另一个连接到输出端口。 滤波器还包括多对串联耦合变容二极管。 每个微带线的第一端耦合到一对可变电抗器中的一个，并且每个微带线的第二端耦合到地。
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公开(公告)号：US20140210571A1
公开(公告)日：2014-07-31
申请号：US14233497
申请日：2012-06-28
申请人： Stefan Andersson , Fenghao Mu , Johan Wer
发明人： Stefan Andersson , Fenghao Mu , Johan Wer
IPC分类号： H03H7/09
CPC分类号： H03H7/09 , H01F27/2804 , H01F27/29 , H01F27/42 , H01P1/212 , H03H7/0115 , H03H7/1758 , H03H7/1775 , H03H7/1791 , H03H7/38 , H03H7/42 , H03H7/425 , H03H7/427 , H03H2001/0078
摘要： A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border.
摘要翻译： 提供了包括具有第一绕组和第二绕组的变压器的变压器滤波器装置。 第一和第二绕组都位于外边界和外边界之间的外边界和内边界之间。 变压器滤波器装置还包括至少一个无功辅助电路，每个电路包括至少一个电感器。 变压器的第一绕组被分成多个绕组段。 所述至少一个电抗子电路中的至少一个与所述第一绕组的绕组段串联连接在所述两个所述绕组段之间，并且所述至少一个电感器中的至少一个位于所述内部边界的内部。
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公开(公告)号：US20130119949A1
公开(公告)日：2013-05-16
申请号：US13664737
申请日：2012-10-31
申请人： PowerMag, LLC
发明人： Robert V. Albertson
CPC分类号： H02J3/1828 , G05F1/70 , H01G9/00 , H01P1/212 , H02J3/01 , H02J3/1835
摘要： Systems and methods are disclosed herein to a power factor adjustor comprising: a power factor measurement unit configured to measure the power factor on an input line to a load and generate a power factor correction signal based on the measured power factor; and a power factor adjustment unit connected to the power factor measurement unit comprising: a fixed capacitor connected in series to a first switching device; and an adjustable element having a variable capacitance connected in parallel to the fixed capacitor and in series to a second switching device, wherein the overall capacitance of the power factor adjustment unit is adjusted by adjusting the capacitance of the adjustable element or by toggling the first and second switching devices in response to the power factor correction signal.
摘要翻译： 本文公开了一种功率因数调节器的系统和方法，包括：功率因数测量单元，被配置为测量到负载的输入线上的功率因数，并且基于所测量的功率因数产生功率因数校正信号; 以及连接到所述功率因数测量单元的功率因数调节单元，包括：与第一开关器件串联连接的固定电容器; 以及可调元件，其具有与固定电容器并联连接并与第二开关器件串联的可变电容，其中功率因数调节单元的总体电容通过调节可调节元件的电容或通过切换第一和第 第二开关器件响应于功率因数校正信号。
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公开(公告)号：US08164396B2
公开(公告)日：2012-04-24
申请号：US12376556
申请日：2007-08-01
申请人： Ryo Ishikawa , Kazuhiko Honjo
发明人： Ryo Ishikawa , Kazuhiko Honjo
CPC分类号： H03F3/601 , H01P1/212 , H01P5/028 , H03F1/56 , H03F3/191 , H03F3/245 , H03F2200/108 , H03F2200/222 , H03F2200/255 , H03F2200/387 , H03F2200/423 , H03F2200/451 , H03F2200/75
摘要： The present invention provides a harmonic processing circuit capable of miniaturizing a circuit, and an amplifier circuit using this harmonic processing circuit.A first impedance adjustment section and a second impedance adjustment section are provided. The first impedance adjustment section is provided with a coupled distributed constant line CT. The coupled distributed constant line CT receive as input the output of an amplification transistor S, and have a length of ¼ the wavelength (λ) of the fundamental wave at the output of the amplification transistor S. Further, the first impedance adjusting section is configured to adjust input impedance with respect to the even harmonics to one of effectively infinity or zero. The first impedance adjusting section and the second impedance adjustment section are configured to adjust input impedance with respect to the odd harmonics to the other of effectively infinity or zero.
摘要翻译： 本发明提供能够使电路小型化的谐波处理电路和使用该谐波处理电路的放大电路。 提供第一阻抗调整部和第二阻抗调整部。 第一阻抗调整部分设有耦合的分布常数线CT。 耦合分布常数线CT作为输入端接收放大晶体管S的输出，并且具有1/4的长度，在放大晶体管S的输出处的基波的波长（λ）。此外，第一阻抗调整部分被配置 将相对于偶次谐波的输入阻抗调整为有效无穷大或零之一。 第一阻抗调整部分和第二阻抗调节部分被配置为相对于奇次谐波将有效无穷大或零的另一个的输入阻抗调整。
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9.发明申请Independently adjustable combined harmonic rejection filter and power sampler 有权独立可调的组合谐波抑制滤波器和功率采样器公开(公告)号：US20070001780A1
公开(公告)日：2007-01-04
申请号：US11169879
申请日：2005-06-30
申请人： Todd Nichols
发明人： Todd Nichols
IPC分类号： H01P5/18
摘要： An adjustable low pass filter and directional coupler used in microwave communication are combined to reduce the size of the microwave circuit. The low pass filter portion and coupling portion are made independently tunable with a plurality of varactors and variable reactance circuits connected to ground.
摘要翻译： 微波通信中使用的可调节低通滤波器和定向耦合器被组合以减小微波电路的尺寸。 低通滤波器部分和耦合部分可以与多个变容二极管和连接到地的可变电抗电路独立地调节。
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10.发明授权公开(公告)号：US06670867B2
公开(公告)日：2003-12-30
申请号：US09781765
申请日：2001-02-12
申请人： Sei-Joo Jang
发明人： Sei-Joo Jang
IPC分类号： H01P1213
CPC分类号： H01P1/2136 , H01P1/2053 , H01P1/2056 , H01P1/212
摘要： The present invention is a filter and a method of making a filter to remove unwanted frequency harmonics associated with current filters. The filter is made up of resonators, such that the filter resonates a design frequency. Whereby, at least two resonators are coupled together between an input and an output and at least one of the resonators is of a different design from other resonators, such that the resonator of a different design resonates the same design frequency as the other resonators and resonates different higher order harmonic frequencies than the other resonators. The present invention also provides methods of improving skirt response for a filter, as well as other response properties of the filter. One way to improve the filter's properties is where at least one of the resonators in a filter is reversed in orientation as compared to the other resonators. Another way is where at least one of the resonators is reversed in orientation electronically by employing electrode coupling on a top and bottom surface of the filter.
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