Title:
TRIPLE-MODE RESONATOR AND WAVEGUIDE FILTER COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/2023/097569
Kind Code:
A1
Abstract:
A triple-mode resonator (100) comprises: a main body having a block of a dielectric material and an overlay of conductive material on the block; a first set of coupling windows (100A), which are provided in the overlay of conductive material on a first face of the main body to be coupled with a first single-mode resonator (101), and through which signals can be coupled into the main body; and a second set of coupling windows (100B), which are provided in the overlay of conductive material on a second face of the main body to be coupled with a second single-mode resonator (102), and through which signals can be coupled out of the main body, wherein the first and second sets of coupling windows (100A, 100B) each comprise an annular coupling window (100A-0, 100B-0) and a plurality of neighboring coupling windows (100A-1, 100A-2, 100A-3, 100B-1, 100B-2, 100B-3) located adjacent to the annular coupling window (100A-0, 100B-0), and when viewed in cross-section, a substantially closed region defined by an inner edge of each annular coupling window (100A-0, 100B-0) is positioned substantially within an electric field-concentrated area respectively associated with the first or second face of the main body, and each annular coupling window (100A-0, 100B-0) is configured such that predetermined settings of parasitic zero point can be obtained by its cooperation with neighboring coupling windows (100A-1, 100A-2, 100A-3, 100B-1, 100B-2, 100B-3) on the first and second faces of the main body. A waveguide filter (1) comprising the above-said triple-mode resonator (100) is also disclosed.
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Inventors:
WANG HONGLAN (CN)
FU JUN (CN)
LIU XU (CN)
FU JUN (CN)
LIU XU (CN)
Application Number:
PCT/CN2021/134833
Publication Date:
June 08, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
WANG HONGLAN (CN)
WANG HONGLAN (CN)
International Classes:
H01P7/10
Foreign References:
| US20180219268A1 | 2018-08-02 | |||
| US20160006105A1 | 2016-01-07 | |||
| US5783979A | 1998-07-21 | |||
| CN106450603A | 2017-02-22 | |||
| CN111430854A | 2020-07-17 | |||
| CN109244606A | 2019-01-18 |
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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