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Composite filter assembly

A filter and assembly technology, which is applied to waveguide-type devices, resonators, circuits, etc., can solve the problems that filters cannot be applied in combination, and the methods of strengthening cavity filters and dielectric resonant filters are different.

Pending Publication Date: 2022-04-01
KMW INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, until now, methods for enhancing the skirt characteristics of cavity filters and dielectric resonator filters have been different, so they cannot be combined and applied to a single filter

Method used

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Embodiment Construction

[0043] Hereinafter, embodiments of the composite filter assembly of the present invention will be described in detail with reference to the drawings. It should be noted that in assigning reference numerals to constituent elements in each drawing, even if they appear in different drawings, the same constituent elements are assigned the same reference numerals as much as possible. Also, in describing the embodiments of the present invention, when it is judged that the specific description of related known structures or functions hinders the understanding of the embodiments of the present invention, the detailed description will be omitted.

[0044]In describing the structural elements of the embodiments of the present invention, the terms first, second, A, B, (a), (b), etc. may be used. Such terms are used only to distinguish one structural element from other structural elements, and the nature or order or sequence of the corresponding structural elements are not limited to the ...

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Abstract

The present invention relates to a composite filter, and more particularly, to a composite filter comprising: a cavity filter provided in one of a plurality of cavities (hereinafter referred to as a "reference cavity") formed in a housing so as to open toward one side; and dielectric resonant filters respectively provided in at least two cavities (hereinafter referred to as "adjacent cavities") adjacent to the reference cavity, the window is designed at different positions in such a manner that the notch wave characteristics between the cavity filter and the at least two dielectric resonant filters are adjusted according to the window which is formed by cutting a part of a partition plate between the reference cavity and the adjacent cavity and is communicated with each other; thus, it is possible to easily design cross-coupling without providing a separate metal crossbar or the like for forming notched waves.

Description

technical field [0001] The present invention relates to a multi-type filter assembly (MULTI TYPE FILTER ASSEMBLY), and in more detail, relates to a multi-type filter assembly capable of maximizing notch wave characteristics while providing standards for filter configuration design. Background technique [0002] Generally, filters applied to base station equipment are represented by a cavity filter (Cavity Filter) and a dielectric resonator filter (DR Filter, Dielectric Resonator Filter). [0003] A typical example of a cavity filter is a notch wave filter, which is a bandpass filter (Bandpass Filter) using a notch wave (Notch), which is used in various wireless communication base stations and radio frequency ( RF (Radio Frequency) band components are passive components that pass only frequencies in a specific band and attenuate the remaining frequency signals. Among the important characteristics of the bandpass filter as described above, the insertion loss in the passband, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P11/00H01P1/20H01P1/207H01P1/08
CPCH01P1/2053H01P1/2084H01P1/08H01P1/2086H01P7/10
Inventor 李权远金成均李畅镐
Owner KMW INC