Communication equipment and filter thereof

A technology of communication equipment and filters, which is applied in the field of communication, can solve the problems of high product complexity and various types of filters, and achieve the effects of reducing volume, reducing complexity, and improving stability

Pending Publication Date: 2021-06-25
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 long-term research and development work that the current filter is equipped with capacitive cross-coupling and inductive cross-coupling at the same time. Since the materials for capacitive cross-coupling and inductive cross-coupling are different, the materials required for the filter There are many types, resulting in high product complexity

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

[0032] 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.

[0033] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this 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 practiced in ...

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Abstract

The invention discloses communication equipment and a filter thereof. The filter comprises a shell and a filtering branch; the shell has a first direction and a second direction perpendicular to each other; and the filtering branch is arranged on the shell and consists of eight filtering cavities which are sequentially coupled, and the eight filtering cavities of the filtering branch form three inductive cross coupling zero points. In this way, the types of materials can be reduced, the complexity of the filter is reduced, and the stability of the filter is improved.

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] In the mobile communication system, the required signal is modulated to form a modulated signal, which is carried on a high-frequency carrier signal, transmitted to the air through the transmitting antenna, and the signal in the air is received through the receiving antenna. Among the signals received by the receiving antenna, not only Include the desired signal, but also include other frequency harmonics, noise signals. For the signal received by the receiving antenna, it is necessary to use a filter to filter out unnecessary harmonics and noise signals. Therefore, the designed filter must precisely control its upper limit frequency and lower limit frequency. And if the transmit channel and the receive channel exist at the same time, it should also be considered to maintain high isolatio...

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 韩军平周峰李炳才袁昕
Owner ANHUI TATFOOK TECH CO LTD
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