公开(公告)号：US11437697B2

公开(公告)日：2022-09-06

申请号：US16990678

申请日：2020-08-11

Applicant: John Howard

Inventor： Wenny Howard ,  John Howard

IPC: H01P5/18 ,  H03H7/01

Abstract: A non-monotonic re-entrant band stop filter equalizer includes terminations and couplers. A first port of a first coupler is coupled as a first external port, and a second port of the first coupler is coupled to a band stop filter. A third port of the first coupler is coupled to a fourth port of a second coupler, and a fourth port of the first coupler is coupled to a first termination. A first port of the second coupler is coupled to the band stop filter, and a second port of the second coupler is coupled as a second external port. A third port of the second coupler is coupled to a second termination. At least one of the first directional coupler and/or second directional coupler may include at least one of a backward coupler and/or forward coupler.

公开(公告)号：US20210058052A1

公开(公告)日：2021-02-25

申请号：US16990678

申请日：2020-08-11

Applicant: John Howard

Inventor： Wenny Howard ,  John Howard

IPC: H03H7/01

Abstract: A non-monotonic re-entrant band stop filter equalizer includes terminations and couplers. A first port of a first coupler is coupled as a first external port, and a second port of the first coupler is coupled to a band stop filter. A third port of the first coupler is coupled to a fourth port of a second coupler, and a fourth port of the first coupler is coupled to a first termination. A first port of the second coupler is coupled to the band stop filter, and a second port of the second coupler is coupled as a second external port. A third port of the second coupler is coupled to a second termination. At least one of the first directional coupler and/or second directional coupler may include at least one of a backward coupler and/or forward coupler.