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High-Q-value miniaturized dielectric waveguide filter

A dielectric waveguide and filter technology, which is applied in the field of communication accessories, can solve the problems that metal filters cannot meet the miniaturization and low cost requirements of 5G communication systems, and the limitations of communication technology development, so as to reduce size, reduce frequency, and improve Q value effect

Pending Publication Date: 2020-07-03
SUZHOU ANJIE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the rapid development of communication technology, the traditional metal filter can no longer meet the requirements of miniaturization and low cost of 5G communication system, thus the dielectric waveguide filter is derived
The current dielectric waveguide filter is usually based on a single dielectric constant material, which is difficult to meet the requirements of improving the Q value on the basis of further reducing the size, which limits the development of communication technology

Method used

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  • High-Q-value miniaturized dielectric waveguide filter

Examples

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Effect test

Embodiment 1

[0022] A high-Q miniaturized dielectric waveguide filter, such as figure 1 As shown, it includes: a shielding box 1 made of a material with a first dielectric constant, and a shielding cavity 11 is formed in the shielding box 1; The frequency-reducing component 2 produced has a second dielectric constant greater than the first dielectric constant. Specifically, the second dielectric constant is usually 1.5-2.5 times the first dielectric constant. In this embodiment, the second dielectric constant is is twice the first dielectric constant, the size, shape and position of the frequency reduction component 2 can be adjusted according to actual needs, such as the shape of the frequency reduction component 2 is not limited to a cylinder, and can be designed into any shape according to the actual process production requirements , and the down-frequency component 2 can be produced as a standard part, which provides greater convenience for subsequent product design and development.

...

Embodiment 2

[0025] The difference between this embodiment and Embodiment 1 is: in this embodiment, if figure 2 As shown, the shielding box 1 is also provided with an inwardly recessed loading protrusion 12. By setting the loading protrusion 12, the frequency can be further reduced. Play 12 opposite sides.

Embodiment 3

[0027] This embodiment is described with a specific scheme: the first dielectric constant is 20, the second dielectric constant is 40, the size of the shielding box 1 is 10mmx10mmx6mm, the frequency can reach 4.2GHz at this time, and the Q value is about 1900; The existing shielding cavity 11 made of a single dielectric constant material can only make the frequency reach 4.2 GHz and the Q value reach 1600 on the basis of setting the loading protrusion 12. If the loading protrusion 12 is not provided, the shielding cavity needs to be greatly increased. The size of the cavity 11 can make the frequency reach 4.2GHz and the Q value reach 1900; it can be seen that by setting the frequency reduction component 2, the size of the shielding box 1 can be effectively reduced, and the Q value is increased at the same time, and the filter performance is improved. The breadth of application.

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Abstract

The invention relates to a high-Q-value miniaturized dielectric waveguide filter, which comprises a shielding box made of a material with a first dielectric constant, wherein a shielding cavity is formed in the shielding box; and a frequency reduction assembly which is arranged in the shielding box and is made of a material with a second dielectric constant, and the second dielectric constant is greater than the first dielectric constant. Because the second dielectric constant is greater than the first dielectric constant, the frequency can be effectively reduced during working, the Q value ofthe single cavity of the dielectric waveguide filter is effectively improved on the basis of reducing the size of the shielding box, and great breakthroughs are provided for miniaturization, low lossand the like of communication technology development.

Description

technical field [0001] The invention relates to the technical field of communication accessories, in particular to a high-Q miniaturized dielectric waveguide filter. Background technique [0002] With the rapid development of communication technology, traditional metal filters can no longer meet the miniaturization and low-cost requirements of 5G communication systems, and dielectric waveguide filters have been derived. The current dielectric waveguide filter is usually based on a material with a single dielectric constant, which is difficult to meet the requirements of improving the Q value on the basis of further reducing the size, which limits the development of communication technology. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a high-Q miniaturized dielectric waveguide filter, which has the advantages of small volume and high Q-value. [0004] To achieve the above object, the technical scheme of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20
CPCH01P1/2002
Inventor 黄振新叶辰健薛文斌唐春宝
Owner SUZHOU ANJIE TECH
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