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公开(公告)号：US20220085476A1
公开(公告)日：2022-03-17
申请号：US17425633
申请日：2019-11-08
Applicant: Huan WANG , Michael BROBSTON , Sammit PATEL , Charles Darwin BERNARDO , CommScope Italy S.r.l.
Inventor： Huan Wang , Michael Brobston , Sammit Patel , Charles Darwin Bernardo
Abstract: Multi-pole filters are provided herein. A multi-pole filter includes a substrate having a first resonator layer on a first side of the substrate and a second resonator layer that is electrically coupled to the first resonator layer and is on a second side of the substrate that is opposite the first side of the substrate.
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公开(公告)号：US20220069426A1
公开(公告)日：2022-03-03
申请号：US17341578
申请日：2021-06-08
Applicant: CommScope Italy S.R.L.
Inventor： Roman Tkadlec , Marco Riva
Abstract: Filter devices that include a movable radio frequency (RF) transmission line are provided. A filter device that includes a movable RF transmission line also includes a plurality of resonators. The movable RF transmission line is configured to move between a first position and a second position relative to the resonators. Electromagnetic coupling between the movable RF transmission line and the resonators is reduced at the second position relative to the first position. Related methods of operating filter devices are also provided.
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公开(公告)号：US20220006483A1
公开(公告)日：2022-01-06
申请号：US17292590
申请日：2020-02-05
Applicant: COMMSCOPE ITALY S.R.L.
Inventor： Corrado Luigi SCACCABAROZZI
Abstract: TX/RX switch circuits include an input, a first circulator having a first port coupled to the input, a circuit element having a first port coupled to a second port of the first circulator, a second circulator having a first port coupled to a second port of the circuit element, an output coupled to a second port of the second circulator, a low noise amplifier coupled between a third port of the second circulator and a third port of the first circulator, a bias circuit that is configured to set an impedance at a third port of the circuit element at a first impedance level when operating in transmit mode and to set the impedance at the third port of the circuit element to have a second impedance level when operating in receive mode, and a first PIN diode coupled between an output of the low noise amplifier and electrical ground.
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公开(公告)号：US10658722B2
公开(公告)日：2020-05-19
申请号：US16257124
申请日：2019-01-25
Applicant: CommScope Italy S.r.l.
Inventor： Stefano Tamiazzo , Giuseppe Resnati
IPC: H01P1/205
Abstract: An in-line resonator filter has a linear array of three or more conductors. A first pair of adjacent conductors has inductive main coupling and oppositely signed capacitive main coupling, while a second pair of non-adjacent conductors has inductive cross-coupling. The first and second pairs have one conductor in common. Between the second pair of non-adjacent conductors, there is no direct ohmic connection that provides the corresponding inductive cross-coupling. The oppositely signed capacitive main coupling compensates for at least a portion of the inductive main coupling between the first pair of adjacent conductors. The in-line resonator filter is able to provide one or more transmission zeros without requiring any discrete bypass connectors that provide direct ohmic connection between pairs of non-adjacent conductors. As such, the in-line resonator filters can be smaller, less complex, and less susceptible to damage.
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45.发明申请公开(公告)号：US20190296415A1
公开(公告)日：2019-09-26
申请号：US16281146
申请日：2019-02-21
Applicant: CommScope Italy S.r.l.
Inventor： Kimmo Henrik Olavi Kettunen
Abstract: RF transmission lines that include a conductive ground plane, a conductive strip that extends above the ground plane, one or more plastic strips disposed between the conductive ground plane and the conductive strip, the one or more plastic strips having a combined length that is at least half a length of the conductive strip, and a plurality of dielectric fasteners that maintain the conductive strip at a predetermined distance above the conductive ground plane.
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Patent Agency Ranking
公开(公告)号：US20170324485A1
公开(公告)日：2017-11-09
申请号：US15526592
申请日：2015-01-06
Applicant: CommScope Italy S.R.L.
Inventor： Sammit A. PATEL , Ray K. BUTLER , John W. BRUNNER , Xiaohua HOU
CPC classification number: H04B15/04 , G01R23/20 , H04B1/0092 , H04B1/26 , H04B17/12 , H04B17/16 , H04B17/18 , H04B17/23 , H04B17/373
Abstract: For wireless cellular communications, a “smart” multi-band combiner system has a multi-band combiner and a passive inter-modulation (PIM) detection sub-system. The multi-band combiner combines multiple transmit signals in different downlink frequency bands into a single, multi-band transmit signal for transmission from a cell tower antenna. The PIM detection sub-system characterizes the frequency components in the multi-band transmit signal to predict PIM products and determine if any predicted PIM products might interfere with any receive signals in any uplink frequency bands. If so, the PIM detection sub-system generates a signal indicating the presence of such predicted interfering PIM products, and the system installer and/or the network administrator can take remedial action to prevent the PIM products from interfering with user communications.
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公开(公告)号：US09755292B2
公开(公告)日：2017-09-05
申请号：US15117839
申请日：2015-04-13
Applicant: CommScope Italy S.R.L.
Inventor： Stefano Tamiazzo
IPC: H04M1/00 , H01P7/00 , H01P5/12 , H01P1/205 , G06F17/50 , H01P1/207 , H01P11/00 , H01P1/20 , H04W88/08
CPC classification number: H01P5/12 , G06F17/5009 , G06F2217/16 , H01P1/20 , H01P1/2053 , H01P1/207 , H01P11/007 , H04W88/08
Abstract: The invention is a compact three-port signal combiner suitable for use in a base station having two different wireless systems. The combiner is designed as a four-port network, but one of the ports is terminated with a predetermined load, thus leaving three ports for connection to user equipment. A first port (A) receives from an antenna a first input signal comprising first and second receive bands and transmits to the antenna a first output signal comprising a transmit band. A second port (R), connected to the first wireless system, outputs to the first wireless system a second output signal comprising the first and second receive bands. A third port (T\R) outputs, to the second wireless system, a third output signal comprising the first and second receive bands and receives from the second wireless system a second input signal that is to be transmitted from the first port.
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公开(公告)号：US20130162374A1
公开(公告)日：2013-06-27
申请号：US13774363
申请日：2013-02-22
Applicant: CommScope Italy S.r.l.
Inventor： Stefano Tamiazzo , Giuseppe Resnati
IPC: H01P1/20
CPC classification number: H01P1/20309 , H01P1/201 , H01P1/205 , H01P1/2086 , H01P7/04 , H01P11/00 , H01P11/007 , H03H7/0123 , H03H7/12 , H03H7/1791 , H03H2250/00 , Y10T29/49826
Abstract: A bandpass filter has a combline structure having a plurality of cascaded nodes. A plurality of nodes in the filter are connected both to resonant elements (a.k.a. resonators) and non-resonant elements (including elements having inductances and/or capacitances that do not resonate in a predetermined frequency band of interest). The resonant frequencies of the resonant elements may be adjusted, in order to adjust the location of the center frequency and/or the width of the passband of the filter. The characteristics of the resonant and non-resonant elements are selected such that the poles of the filter, when plotted on the complex plane, move substantially along the imaginary axis when the resonant frequencies are adjusted, without substantial movement along the real axis. The resulting bandpass filter has substantially constant losses and substantially constant absolute selectivity over a relatively wide range of bandwidths.
Abstract translation: 带通滤波器具有具有多个级联节点的梳状结构。 滤波器中的多个节点既连接到谐振元件（例如谐振器）和非共振元件（包括在感兴趣的预定频带中不谐振的电感和/或电容的元件）。 可以调节谐振元件的谐振频率，以便调节滤波器的中心频率的位置和/或通带的宽度。 选择共振和非共振元件的特性，使得当绘制在复平面上时，滤波器的极点在谐振频率被调整时基本沿着虚轴移动，而不沿实际实质运动。 所得到的带通滤波器在相对宽的带宽范围内具有基本恒定的损耗和基本上恒定的绝对选择性。
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公开(公告)号：US12244047B2
公开(公告)日：2025-03-04
申请号：US17782034
申请日：2020-12-02
Applicant: CommScope Italy S.R.L.
Inventor： Tero Kämäräinen , Marko Tapani Uusitalo
Abstract: Filter devices are provided herein. In some embodiments, a filter device includes first and second resonator stalks in respective first and second openings in a PCB that has first and second metal resonator heads that are on the first and second resonator stalks, respectively. Moreover, in some embodiments, a filter device includes a metal resonator head that has a loop portion on a resonator stalk and a plurality of arms that extend outward from the loop portion.
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公开(公告)号：US11936086B2
公开(公告)日：2024-03-19
申请号：US17637296
申请日：2020-09-17
Applicant: COMMSCOPE ITALY S.R.L.
Inventor： Andrea Manzoni , Giuseppe Resnati , Kejia Cao , Daniele Marrelli
CPC classification number: H01P1/2088 , H01P1/2002
Abstract: A metallized dielectric waveguide filter includes an upper metallized dielectric waveguide having a plurality of upper resonant cavities, the upper metallized dielectric waveguide comprising an upper dielectric block having metallized outer walls, and a lower metallized dielectric waveguide having a plurality of lower resonant cavities, the lower metallized dielectric waveguide comprising a lower dielectric block having metallized outer walls. A first of the upper resonant cavities is operatively connected to a first of the lower resonant cavities via at least one coupling window. A first slot having metallized walls is provided in a portion of the upper dielectric block that is part of the first of the upper resonant cavities.
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