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Filter and communication equipment

A filter and filter cavity technology, which is applied in the field of communication, can solve the problems of signal isolation and poor consistency of materials, and achieve the effects of improving signal isolation, single type of material, and saving costs

Pending Publication Date: 2021-06-29
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 number of material types in the filtering branch of the existing filter will increase with the increase of the coupling zero point, resulting in poor material consistency, and the number of filtering branches between multiple filtering branches The signal isolation between

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  • Filter and communication equipment
  • Filter and communication equipment
  • Filter and communication equipment

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Embodiment Construction

[0015] 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.

[0016] 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 communication equipment. The filter comprises: a shell having a first direction and a second direction perpendicular to each other; an emission filtering branch arranged on the shell and composed of eight emission filtering cavities which are coupled in sequence, wherein the eight emission filtering cavities further form three inductive coupling zero points of the emission filtering branch; and a receiving filtering branch circuit arranged on the shell, wherein the receiving filtering branch circuit is composed of seven receiving filtering cavities which are sequentially coupled, and the seven receiving filtering cavities further form two capacitive coupling zero points of the receiving filtering branch circuit. In this way, the material consistency of the filtering branches is improved, and the signal isolation degree between the filtering branches is 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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IPC IPC(8): H01P1/208H01P1/209
CPCH01P1/208H01P1/209
Inventor 王伟曳周峰张宝真赵志敏
Owner ANHUI TATFOOK TECH CO LTD