DIELECTRIC RESONATOR, DIELECTRIC FILTER, RADIO FREQUENCY DEVICE, AND BASE STATION

WIPO Patent Application WO/2023/060438

A1

The present application relates to the field of terminals, and in particular, to a dielectric resonator, a dielectric filter, a radio frequency device, and a base station. The dielectric filter comprises a cavity and a dielectric resonator. The dielectric resonator comprises a central portion, and a first end portion, a second end portion, a third end portion, and a fourth end portion extending from the central portion, wherein the first end portion, the second end portion, the third end portion, the fourth end portion, and the central portion together form a first surface. The first surface and a ground surface of the cavity are grounded. Moreover, two end portions opposite to each other in the dielectric resonator can each excite one resonant mode, and the central portion can excite one resonant mode. On this basis, the dielectric filter can decouple a plurality of resonant modes, and implement independent coupling and independent decoupling between one of the resonant modes and an external cavity, thereby simplifying coupling characteristics of the entire dielectric filter, simplifying a coupling path of resonant mode topology, reducing the difficulty of designing the dielectric filter, and promoting the practical applicability of a multimode dielectric filter.

QIAO DONGCHUN (CN)
PU GUOSHENG (CN)
LIANG DAN (CN)
YUAN BENGUI (CN)

PCT/CN2021/123307

April 20, 2023

October 12, 2021

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HUAWEI TECH CO LTD (CN)

H01P1/207; H01P1/208

CN105006617A	2015-10-28
CN1197305A	1998-10-28
CN108336459A	2018-07-27
CN209929461U	2020-01-10
EP1962371A1	2008-08-27

YINKE PATENT & TRADEMARK AGENT (SHANGHAI) LTD. (CN)

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