Title:
FILTER COUPLING UNIT AND FILTER
Document Type and Number:
WIPO Patent Application WO/2021/004544
Kind Code:
A1
Abstract:
Embodiments of the present disclosure provide a filter coupling unit and a filter. The filter coupling unit comprises sub-resonant cavities, a shielding layer, tuning holes, a capacitive coupling hole and an inductive coupling hole, wherein the shielding layer is arranged on an outer surface of the coupling unit; a plurality of sub-resonant cavities are provided in the coupling unit, and the-sub resonant cavities are distributed in the coupling unit; each of the tuning holes is formed in an end face of the corresponding sub-resonant cavity and is used for adjusting the frequency of the filter; there is at least one capacitive coupling hole located between at least two of the sub-resonant cavities and used for generating a capacitive coupling effect; and there is at least one inductive coupling hole arranged between adjacent sub-resonant cavities and used for generating an inductive coupling effect. Cross-coupling of the filter is achieved, the structure thereof is simple, and same is easily implemented.
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| JP2768167 | STRIP LINE POLARIZED FILTER |
| WO/1988/002559 | ANTENNA SHARING DEVICE |
Inventors:
BU WEI (CN)
GONG HONGWEI (CN)
GONG HONGWEI (CN)
Application Number:
PCT/CN2020/101619
Publication Date:
January 14, 2021
Filing Date:
July 13, 2020
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H01P1/208; H01P1/20
Foreign References:
| CN210778910U | 2020-06-16 | |||
| CN109461995A | 2019-03-12 | |||
| CN104241798A | 2014-12-24 | |||
| CN208622915U | 2019-03-19 | |||
| KR20070114098A | 2007-11-29 | |||
| CN202678485U | 2013-01-16 | |||
| CN207705363U | 2018-08-07 |
Other References:
See also references of EP 3985791A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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