公开(公告)号：US11145945B2

公开(公告)日：2021-10-12

申请号：US16800707

申请日：2020-02-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rongbiao Su ,  Zhou Chen ,  Ruoming Wang

IPC: H01P1/20 ,  H01P7/10 ,  H01P1/205

Abstract: A dielectric filter includes a plurality of resonators, wherein each resonator included in the plurality of resonators includes a tuning hole; and at least one stepped hole for adjusting capacitive coupling, wherein the at least one stepped hole is disposed between two adjacent resonators included in the plurality of the resonators, wherein the stepped hole comprises a large hole and a small through hole at a bottom center of the large hole, wherein a first sidewall and a first annular bottom of the large hole are configured with a metal conductive layer, and wherein at least one of a second sidewall of the small through hole and a second annular portion outside a bottom of the small through hole is not covered with the conductive layer.

公开(公告)号：US11581619B2

公开(公告)日：2023-02-14

申请号：US17059123

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ruoming Wang ,  Haiju Kang ,  Zhenkun Zhang ,  Bingjian Niu

IPC: H01P1/20 ,  H01P1/208 ,  H01P1/08

Abstract: A dielectric waveguide filter includes first resonant cavities, which are connected to form upper resonant cavities, and second resonant cavities, which are connected to form lower resonant cavities, wherein the upper and lower resonant cavities are correspondingly overlapped; each of the first resonant cavities has a first window coupling structure, wherein the first window coupling structure includes a first window opened at a position where the magnetic field distribution of a high-order mode in each of the first resonant cavities is the weakest, and/or a second window opened at a position where the electric field distribution of the high-order mode in each of the first resonant cavities is the strongest; and each of the second resonant cavities has a second window coupling structure corresponding to the first window coupling structure, and the first and second window coupling structures cooperate to eliminate the high-order modes of the dielectric waveguide filter.