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Coupling device of metal coaxial cavity and medium resonant cavity and filter

The technology of a dielectric resonant cavity and a dielectric resonator is applied in the field of filters, which can solve the problems of complex structure of the coupling device and difficult processing, and achieve the effects of simple processing technology, high production efficiency and good coupling effect.

Active Publication Date: 2013-06-12
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a coupling device for a metal coaxial cavity and a dielectric resonant cavity, which can solve the problems of complex structure and difficult processing of the coupling device in the prior art

Method used

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  • Coupling device of metal coaxial cavity and medium resonant cavity and filter
  • Coupling device of metal coaxial cavity and medium resonant cavity and filter
  • Coupling device of metal coaxial cavity and medium resonant cavity and filter

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] see Figure 1-Figure 4 It is an assembly drawing of a coupling device of a metal coaxial cavity and a dielectric resonator in the present invention, the coupling device includes a cavity body 1, a cavity wall 2, a coupling screw 3, a first rectangular window 4, a second rectangular window 5, a metal A coaxial cavity 11 , a dielectric resonant cavity 12 , a metal coaxial resonator 111 and a dielectric resonator 121 .

[0022] The shape of the cavity 1 is not...

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Abstract

The invention discloses a coupling device of a metal coaxial cavity and a medium resonant cavity. A cavity wall is arranged between a metal coaxial resonator and a medium resonator and divides a cavity body into the metal coaxial cavity and the medium resonant cavity. The two cavities are coupled through a reversed-L-shaped coupling window or a 7-shaped window, wherein the reversed-L-shaped coupling window or the 7-shaped window is formed by the cavity wall and the top face and the side faces of the cavity. A good coupling effect can be obtained, meanwhile, the shape of the coupling window is regular, machining process is simple, and production efficiency is high.

Description

technical field [0001] The invention relates to a filter used in the field of radio frequency communication, in particular to a coupling device of a metal coaxial cavity and a dielectric resonant cavity. Background technique [0002] With the increasing development of wireless communication technology, wireless communication systems have higher and higher requirements on the performance of base stations, and filters play an important role in the performance of base stations, requiring lower insertion loss and better suppression performance, but also Mass producibility and higher reliability need to be guaranteed. There are generally two types of existing base station antenna feeder filters, metal coaxial cavities and dielectric resonant cavities. In current practical applications, the same mode is generally used to realize the filter function, that is, all metal coaxial cavities or all dielectric resonant cavities; and the coupling device for coupling metal coaxial cavities...

Claims

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Application Information

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IPC IPC(8): H01P1/208
CPCH01P1/2084H01P1/2053H01P1/208
Inventor 胡健田涛郑清扩
Owner HUAWEI TECH CO LTD
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