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Dielectric filter and multi-order dielectric filter

A dielectric filter and dielectric technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of poor frequency selection performance, large size and complex structure of ceramic dielectric filters.

Pending Publication Date: 2020-11-20
MOBILE ANTENNA TECH SHENZHEN +5
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This application provides a dielectric filter and a multi-stage dielectric filter to solve the complex structure and large volume of the traditional ceramic dielectric filter in realizing multi-mode multi-stage filtering, which leads to the frequency selection performance of the ceramic dielectric filter poor problem

Method used

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  • Dielectric filter and multi-order dielectric filter
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  • Dielectric filter and multi-order dielectric filter

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Embodiment Construction

[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0038] In the description of the embodiments of the present application, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implic...

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Abstract

The invention provides a dielectric filter and a multi-order dielectric filter. The dielectric filter comprises a dielectric body, and the dielectric body is provided with two surfaces arranged back to back in the thickness direction and a side face located between the two surfaces; two first through holes and two second through holes are formed in the dielectric body, one of the first through holes and the second through holes penetrates from one of the two surfaces to the side surface, and the other one of the first through holes and the second through holes penetrates from the other one ofthe two surfaces to the side surface; the connecting line of the two first through holes and the connecting line of the two second through holes are respectively intersected with the axis of the dielectric body; and one first through hole and one second through hole are respectively used for being coupled with a pair of frequency mode generation sources. According to the dielectric filter providedby the invention, the overall size of the resonator can be reduced, dual-channel second-order filtering is realized on a single dielectric resonator, the frequency selectivity of the dielectric filter is effectively improved, the dielectric filter has a simple structural form, and the space utilization rate is greatly improved.

Description

technical field [0001] The invention relates to the technical field of microwave filtering, in particular to a dielectric filter and a multi-order dielectric filter. Background technique [0002] In wireless communication systems, filters are indispensable frequency selective devices. With the rapid development of communication technology, the requirements for the size and weight of RF front-end filters are getting higher and higher. Among them, ceramic dielectric filters based on ceramics with high dielectric constant and low loss angle have a compact size And excellent performance, has broad application prospects. However, the traditional ceramic dielectric filter has a complex structure and a large volume in realizing multi-mode and multi-order filtering, which leads to poor frequency selection performance of the ceramic dielectric filter. Contents of the invention [0003] This application provides a dielectric filter and a multi-stage dielectric filter to solve the ...

Claims

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Application Information

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IPC IPC(8): H01P1/20
CPCH01P1/2002
Inventor 刘磊王斌华叶荣王律孔唯同庄莉
Owner MOBILE ANTENNA TECH SHENZHEN
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