Dielectric filter, communication equipment, method for preparing dielectric block and method for preparing dielectric filter

A dielectric filter and communication equipment technology, applied in the field of communication, can solve the problem of low accuracy of transmission zero point debugging

Inactive Publication Date: 2020-07-07
ANHUI TATFOOK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to improve the out-of-band suppression performance of the dielectric filter, coupling holes are usually set on the dielectric block, and the transmission zero point is realized through the coupling hole, but the coupling holes in the existing dielectric filter have low accuracy in debugging the transmission zero point

Method used

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  • Dielectric filter, communication equipment, method for preparing dielectric block and method for preparing dielectric filter
  • Dielectric filter, communication equipment, method for preparing dielectric block and method for preparing dielectric filter
  • Dielectric filter, communication equipment, method for preparing dielectric block and method for preparing dielectric filter

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Embodiment Construction

[0024] 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.

[0025] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present 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 practi...

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Abstract

The invention discloses a dielectric filter, communication equipment, a method for preparing a dielectric block and a method for preparing the dielectric filter. The dielectric filter comprises: a dielectric block which forms at least two resonant cavities, wherein the at least two resonant cavities are connected; at least a first coupling hole and a second coupling hole, wherein the first coupling hole is arranged on the first surface of the dielectric block, the second coupling hole is arranged on the second surface of the dielectric block, and the first surface and the second surface are arranged oppositely; and a metal layer which covers the surface of the dielectric block, the surface of the first coupling hole and the surface of the second coupling hole, wherein materials of the dielectric filter at least comprise calcium carbonate, samarium trioxide, aluminum oxide and titanium dioxide. In this way, the accuracy of debugging the transmission zero point can be improved; and the dielectric constant is low, the loss is low, the temperature coefficient is close to zero, and the dielectric property of the dielectric filter can be improved.

Description

technical field [0001] The present application relates to the field of communication technology, in particular to a dielectric filter applied to a 5G communication system, a communication device, a method for preparing a dielectric block and a dielectric filter. 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 dielectric filter to filter out unnecessary harmonics and noise signals. [0003] With the rapid development of communication technology, especially the arrival of the 5G communication era, more ...

Claims

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Application Information

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IPC IPC(8): H01P1/208H01P11/00C04B35/057C04B35/622
CPCC04B35/057C04B35/622C04B2235/3217C04B2235/3224C04B2235/3232C04B2235/6567H01P1/2084H01P11/007
Inventor 吴文敬钟志波袁亮亮陆正武陈薛爱
Owner ANHUI TATFOOK TECH CO LTD
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