Communication equipment and filter thereof

A filter and filter cavity technology, which is applied in the field of communication, can solve the problems of occupying filter space, large filter volume, and large number of taps, etc., and achieve the effect of reducing space, reducing volume, and reducing the number of taps

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 have found in long-term research and development work that when the filter in the prior art is provided with multiple filtering branches, each filtering branch needs to independently set the taps of the input end and the output end, and the number of taps is large, occupying the filter space, resulting in large filter size and high cost

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

[0023] 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.

[0024] 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 having a first direction and a second direction perpendicular to each other, afirst common cavity, a first filtering branch and a second filtering branch, wherein the first common cavity is arranged on the shell; the first filtering branch is coupled with the first common cavity, consists of six filtering cavities which are sequentially coupled and forms two cross coupling zero points of the first filtering branch; and the second filtering branch is coupled with the first common cavity, consists of four filtering cavities which are sequentially coupled, and forms a cross coupling zero point of the second filtering branch. In the way, the number of taps can be reduced, and the size of the filter is reduced.

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 bandwidth. [0003] The inventors of the present application have found in long-term research and development work that when the filter in the prior art is provided with multiple ...

Claims

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Application Information

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IPC IPC(8): H01P1/208H01P1/209
CPCH01P1/208H01P1/209
Inventor 王伟曳蔡永宏唐梦军何桂梅
Owner ANHUI TATFOOK TECH CO LTD
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