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Communication equipment and filter thereof

A filter and filter cavity technology, applied in the field of communication, can solve the problems of not meeting the requirements of 5G miniaturization and the bulk of the filter, achieving strong out-of-band suppression performance and facilitating miniaturization.

Inactive Publication Date: 2021-11-09
ANHUI TATFOOK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The filter in the prior art is to achieve a high frequency of 2600MHz, and the filter is bulky and cannot meet the miniaturization requirements of 5G

Method used

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  • Communication equipment and filter thereof
  • Communication equipment and filter thereof
  • Communication equipment and filter thereof

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Embodiment Construction

[0024] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0025] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practi...

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Abstract

The invention discloses communication equipment and a filter thereof. The filter comprises a filtering branch which is arranged on a shell and is composed of ten filtering cavities coupled in sequence, wherein the ten filtering cavities of the filtering branch form three capacitive cross coupling zero points and two inductive cross coupling zero points; the second filtering cavity and the fifth filtering cavity of the filtering branch are subjected to capacitive cross coupling, the third filtering cavity and the fifth filtering cavity are subjected to capacitive cross coupling, the sixth filtering cavity and the eighth filtering cavity are subjected to capacitive cross coupling, the fifth filtering cavity and the eighth filtering cavity are subjected to inductive cross coupling, and the eighth filtering cavity and the tenth filtering cavity are in inductive cross coupling; and the first to tenth filtering cavities of the filtering branch are divided into three columns arranged along the first direction. By means of the mode, zero suppression can be achieved, index debugging is facilitated, the size of the filter can be reduced, and miniaturization of the filter is facilitated.

Description

technical field [0001] The present application relates to the technical field of communication, in particular to a communication device and a filter thereof. Background technique [0002] Microwave filters are the key equipment of modern mobile communication systems, and are widely used in wireless communication base stations and various communication terminals; microwave cavity filter structures are composed of radio frequency connectors, cavity bodies, cover plates, multiple resonator units, and Composed of frequency tuning and coupling strength adjustment components, the resonant frequencies of multiple resonant units are distributed within the passband range, and have a blocking function for signals outside the resonant frequency, thereby realizing the selection function of microwave transmission signals; the cavity filter has a reliable structure , Filter frequency bandwidth, parasitic passband away from the channel, high Q value, stable electrical performance, good hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208H01P1/209
CPCH01P1/208H01P1/209
Inventor 陈砚昌
Owner ANHUI TATFOOK TECH CO LTD