公开(公告)号：US11757164B2

公开(公告)日：2023-09-12

申请号：US17319140

申请日：2021-05-13

Applicant: CommScope Italy S.r.I.

Inventor： Stefano Tamiazzo ,  Giuseppe Resnati

IPC: H01P1/205

CPC classification number: H01P1/2053 ,  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.