Title:
A DIELECTRIC CAVITY RESONATOR AND A DIELECTRIC CAVITY FILTER HAVING THE SAME
Document Type and Number:
WIPO Patent Application WO/2023/279861
Kind Code:
A1
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.
Inventors:
FU JUN (CN)
WANG WEIDONG (CN)
WANG HONGLAN (CN)
ZHANG XUEYUAN (CN)
WANG WEIDONG (CN)
WANG HONGLAN (CN)
ZHANG XUEYUAN (CN)
Application Number:
PCT/CN2022/093899
Publication Date:
January 12, 2023
Filing Date:
May 19, 2022
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
FU JUN (CN)
FU JUN (CN)
International Classes:
H01P1/208
Foreign References:
| EP1858109A1 | 2007-11-21 | |||
| CN102447153A | 2012-05-09 | |||
| US5796320A | 1998-08-18 | |||
| EP1962370A1 | 2008-08-27 |
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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