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Filter and communication device

A filter and filter cavity technology, applied in the field of communication, can solve the problems of poor material consistency, low filter stability, and large filter volume, and achieve the effects of improving consistency, improving stability and reducing volume

Pending Publication Date: 2021-07-16
ANHUI TATFOOK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The inventors of the present application found in the long-term research and development work that the volume of the existing filter increases significantly with the increase in the number of filtering branches, resulting in a larger volume of the filter and poor material consistency, resulting in a stable filter. Sex is not high

Method used

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  • Filter and communication device
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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0015] The terms "first" and "second" in this application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cov...

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Abstract

The invention discloses a filter and a communication device. The filter comprises a shell having a first direction and a second direction perpendicular to each other; a first filtering branch is arranged on the first side of the shell and is composed of ten first filtering cavities which are coupled in sequence, and the ten first filtering cavities further form four capacitive cross coupling zero points; and a second filtering branch circuit is arranged on the second side of the shell and is composed of ten second filtering cavities which are sequentially coupled, the ten second filtering cavities further form four capacitive cross coupling zero points, and the first side and the second side are arranged in a back-to-back mode. In the way, the size of the filter can be reduced, the material consistency can be improved, and the stability of the filter can be improved.

Description

technical field [0001] The present application relates to the technical field of communication, in particular to a filter and a communication device. Background technique [0002] In a base station system for mobile communications, a communication signal carrying communication data within a specific frequency range is usually transmitted through a transmitting antenna, and the communication signal is received through a receiving antenna. The signal received by the receiving antenna includes not only communication signals carrying communication data within the above-mentioned specific frequency range, but also many clutter or interference signals outside the above-mentioned specific frequency range. In order to obtain a communication signal carrying communication data within a specific frequency range transmitted by the transmitting antenna from the signal received by the receiving antenna, it is usually necessary to filter the signal received by the receiving antenna through...

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 钟志波袁昕温世议何慧华
Owner ANHUI TATFOOK TECH CO LTD
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