Communication equipment and filter thereof

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

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

AI Technical Summary

Problems solved by technology

[0003] The inventor of the present application has found in long-term research and development work that the current filter is provided with multiple filtering branches, and each filtering branch is provided with taps separately, resulting in a large number of taps in the existing filter and increasing the filter capacity. size and 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

[0041] In order to enable those skilled in the art to better understand the technical solution of the present application, a communication device and a filter thereof provided by the present invention will be further described in detail below with reference to the drawings and specific implementation methods.

[0042] see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the filter of the present application.

[0043] The present application provides a filter 10, the filter 10 of this embodiment includes a housing 11, a first port 12, a first filtering branch 13, a second filtering branch 14, a second port 15, a third filtering branch 16 and the fourth filtering branch 17.

[0044]The casing 11 has a first direction D and a second direction L perpendicular to each other; the first port 12 and the second port 15 are arranged on the casing 11 at intervals; the first filtering branch 13 is connected to the first port 12, and is sequentially coupled T...

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Abstract

The invention discloses communication equipment and a filter thereof. The filter comprises a shell, a first port, a first filtering branch and a second filtering branch, wherein the shell has a first direction and a second direction which are perpendicular to each other; the first port is arranged on the shell; the first filtering branch is connected with the first port and is composed of twelve filtering cavities which are coupled in sequence, and four coupling zero points of the first filtering branch are formed; the second filtering branch is connected with the first port and is composed of five filtering cavities which are coupled in sequence, and two coupling zero points of the second filtering branch are formed; and the projection of the first filtering branch in the first direction is overlapped with the projection of the second filtering branch in the first direction. Through the mode, the first filtering branch and the second filtering branch can share the first port, each filtering branch is prevented from being independently provided with a tap, the number of the taps of the filter is reduced, the size of the filter is reduced, and the cost 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 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 钟志波刘学鑫周峰刘建伟
Owner ANHUI TATFOOK TECH CO LTD
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