公开(公告)号：US20220271410A1

公开(公告)日：2022-08-25

申请号：US17623063

申请日：2020-04-17

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Honglan WANG ,  Weidong WANG ,  Jun FU ,  Haitao LIU

IPC: H01P7/10 ,  H01P1/20

Abstract: A resonator apparatus, a filter apparatus as well as a radio frequency and microwave device are disclosed. According to an embodiment, the resonator apparatus comprises an electrically conductive case and a dual-mode dielectric resonator provided in the electrically conductive case. The dual-mode dielectric resonator comprises a first dielectric block having a shape of a columnar body whose cross section is a cruciform. A mode coupling structure for coupling two resonant modes of the dual-mode dielectric resonator is provided in the columnar body. A bottom face of the columnar body is supported by an inner face of the electrically conductive case or by a supporting member provided on the inner face of the electrically conductive case. In at least one extending direction of a first extending direction and a second extending direction of the cruciform which are perpendicular to each other, lateral end faces of the columnar body are spaced apart from inner faces of the electrically conductive case.

公开(公告)号：US20240347887A1

公开(公告)日：2024-10-17

申请号：US18752680

申请日：2024-06-24

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Peiguang LU ,  Haitao LIU ,  Weidong WANG

IPC: H01P1/20 ,  H01P1/205 ,  H01P1/208 ,  H01P7/06 ,  H01P7/10

CPC classification number: H01P1/2002 ,  H01P1/2053 ,  H01P1/2084 ,  H01P1/2088 ,  H01P7/065 ,  H01P7/10

Abstract: A resonating structure and a dielectric filter having the same are disclosed. The resonating structure comprises a body, at least one set of negative coupling holes, and a conductive material layer. The body is made of a solid dielectric material and comprises at least two resonators. The negative coupling holes are formed at a connection between two adjacent resonators. Each set of negative coupling holes comprises a first blind hole and a second blind hole disposed on two opposite surfaces of the body respectively. The first blind hole and the second blind hole are offset from each other in a plane perpendicular to a direction along which the first or second blind hole is dug. The conductive material layer covers surfaces of the body and surfaces of the first blind hole and the second blind hole.

公开(公告)号：US20240267029A1

公开(公告)日：2024-08-08

申请号：US18692276

申请日：2022-04-26

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jun FU ,  Weidong WANG ,  Xueyuan ZHANG

IPC: H03H9/54 ,  H01Q23/00 ,  H03H9/17

CPC classification number: H03H9/54 ,  H01Q23/00 ,  H03H9/17

Abstract: An integrated low-pass and band-pass filter unit comprises an inner cavity formed by a shell of conductive materials; one or more low-pass resonators and two or more band-pass resonators comprised in the inner cavity. The low-pass and band-pass resonators are integrally formed by electroplated sheet metal material, and a part of each of the low-pass and band-pass resonators is coated with dielectric material. The two or more band-pass resonators are arranged at two sides of the inner cavity such that at least two resonators are aligned to face each other. The integrated low-pass and band-pass filter unit further comprises a first separator of electroplated sheet metal arranged in the inner cavity between the low-pass resonators and band-pass resonators and a second separator of electroplated sheet metal arranged in the inner cavity between the band-pass resonators at the two sides of the inner cavity.

公开(公告)号：US20220149499A1

公开(公告)日：2022-05-12

申请号：US17310893

申请日：2019-03-29

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Peiguang LU ,  Haitao LIU ,  Weidong WANG

IPC: H01P1/208 ,  H01P7/10

Abstract: A resonating structure and a dielectric filter having the same are disclosed. The resonating structure comprises a body, at least one set of negative coupling holes, and a conductive material layer. The body is made of a solid dielectric material and comprises at least two resonators. The negative coupling holes are formed at a connection between two adjacent resonators. Each set of negative coupling holes comprises a first blind hole and a second blind hole disposed on two opposite surfaces of the body respectively. The first blind hole and the second blind hole are offset from each other in a plane perpendicular to a direction along which the first or second blind hole is dug. The conductive material layer covers surfaces of the body and surfaces of the first blind hole and the second blind hole.