The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2026
Filed:
May. 19, 2022
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Jun Fu, Beijing, CN;
Weidong Wang, Beijing, CN;
Honglan Wang, Beijing, CN;
Xueyuan Zhang, Beijing, CN;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The present disclosure relates to a dielectric cavity resonator, comprising: a metallic resonance cavity having a cuboid shape defining three orthogonal axes x, y, z substantially aligned with walls of the metallic resonance cavity and having a central axis extending in the z direction; a dielectric core provided in the metallic resonance cavity, the dielectric core comprising: a central part extending coaxially with respect to the central axis of the metallic resonance cavity; and four columnar parts arranged around the central part and integrally formed with the central part and each extending in the z direction and having a petal-like shape in an x-y cross-section perpendicular to the z direction, every two adjacent columnar parts being spaced by a groove, the dielectric core being centrosymmetric and axisymmetric in each x-y cross-section perpendicular to the z direction, wherein the metallic resonance cavity has a square cross-section, and in each petal-like cross-section, each columnar part extends in a direction of an adjacent corner area of corresponding square cross-section of the metallic resonance cavity, and a height of the central part is not greater than a height of a main body of each columnar part when measured in the z direction. The present disclosure also relates to a dielectric cavity filter comprising the above-mentioned dielectric cavity resonator.