公开(公告)号：US11799180B2

公开(公告)日：2023-10-24

申请号：US17483391

申请日：2021-09-23

Applicant: CommScope Italy, S.r.l.

Inventor： Xianxiang Li ,  Yangzhun Lv ,  Qing Mi ,  Qiyun Gu ,  Giuseppe Resnati

IPC: H01P1/202 ,  H01P1/207 ,  H01P3/08 ,  H01P7/04 ,  H01P1/208

CPC classification number: H01P1/207 ,  H01P1/202 ,  H01P1/208 ,  H01P3/08 ,  H01P7/04

Abstract: A band-stop filter comprises: a housing having a top wall, a bottom wall and at least one side wall, the housing defining an internal cavity; a signal input port and a signal output port that are respectively disposed on one of the at least one side wall; a resonating element that is disposed in the internal cavity and includes a top, a bottom, and a side; and a transmission line that is disposed in the internal cavity and coupled between the signal input port and the signal output port, the transmission line comprising a coupling section that is coupled to the resonating element, wherein the coupling section is configured to surround more than half of the side of the resonating element and not directly contact the housing and the resonating element.

公开(公告)号：US20220158317A1

公开(公告)日：2022-05-19

申请号：US17529615

申请日：2021-11-18

Applicant: CommScope Italy, S.R.L.

Inventor： Martin Kufa ,  Lukás Matrka ,  Frantisek Ondracek ,  Jaromir Peroutka ,  Giuseppe Resnati

IPC: H01P1/207 ,  H01P3/12 ,  H01P7/10

Abstract: Resonant cavity filters include a conductive housing having a floor. A dielectric resonator is mounted to extend upwardly from the floor. The dielectric resonator has a cylindrical body with a longitudinal bore that defines an inner sidewall. The longitudinal bore has a variable transverse cross-sectional area. A threaded dielectric fastener is at least partially inserted within the longitudinal bore of the cylindrical body. The dielectric resonator may have a protrusion that extends inwardly from the inner sidewall.

公开(公告)号：US20220029261A1

公开(公告)日：2022-01-27

申请号：US17483391

申请日：2021-09-23

Applicant: CommScope Italy, S.r.l.

Inventor： Xianxiang Li ,  Yangzhun Lv ,  Qing Mi ,  Qiyun Gu ,  Giuseppe Resnati

IPC: H01P1/207 ,  H01P3/08 ,  H01P7/04 ,  H01P1/202 ,  H01P1/208

Abstract: A band-stop filter comprises: a housing having a top wall, a bottom wall and at least one side wall, the housing defining an internal cavity; a signal input port and a signal output port that are respectively disposed on one of the at least one side wall; a resonating element that is disposed in the internal cavity and includes a top, a bottom, and a side; and a transmission line that is disposed in the internal cavity and coupled between the signal input port and the signal output port, the transmission line comprising a coupling section that is coupled to the resonating element, wherein the coupling section is configured to surround more than half of the side of the resonating element and not directly contact the housing and the resonating element.

公开(公告)号：US10236550B2

公开(公告)日：2019-03-19

申请号：US15529775

申请日：2015-07-10

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.

公开(公告)号：US20180331406A1

公开(公告)日：2018-11-15

申请号：US16039366

申请日：2018-07-19

Applicant: CommScope Italy S.r.l.

Inventor： ROMAN TKADLEC ,  YongJie Xu ,  Richard Brown ,  Giuseppe Resnati ,  Omar Parimbelli ,  Sammit Patel

IPC: H01P1/207 ,  H01P1/213 ,  H01P1/203 ,  H01P7/06

CPC classification number: H01P1/207 ,  H01P1/20345 ,  H01P1/2135 ,  H01P1/2138 ,  H01P7/06

Abstract: The present invention provides filter assemblies, tuning elements and a method of tuning a filter. A filter assembly includes a housing having a top cover, a bottom cover and at least one sidewall, the top cover, the bottom cover and the at least one sidewall defining an internal cavity, the housing configured to receive first through third radio frequency (“RF”) transmission lines; a top metal sheet mounted within the internal cavity that has a plurality of openings that form a first hole pattern; and a bottom metal sheet mounted within the internal cavity that has a plurality of openings that form a second hole pattern. The top and bottom metal sheets are vertically spaced-apart from each other in a vertically stacked relationship within the internal cavity. The top metal sheet and the bottom metal sheet each include at least one resonator.