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Ceramic waveguide filter

A technology of waveguide filter and ceramics, which is applied in the filter field in the field of wireless communication, can solve the problems of inconvenience, deep blind hole processing and electroplating difficulties, and achieve the effect of easy electroplating, simple structure, and no need for assembly and welding

Active Publication Date: 2021-05-11
MOBI TECH SHENZHEN CO LTD +4
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the processing and electroplating of deep blind holes are more difficult
[0005] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

Method used

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] It should be noted that references in this specification to "one embodiment", "embodiment", "example embodiment" and the like mean that the described embodiment may include specific features, structures or characteristics, but not every Embodiments must include those specific features, structures or characteristics. Furthermore, such expressions are not referring to the same embodiment. Further, when specific features, structures or characteristics are described in conjunction with an embodiment, whether or not there is an explicit description, it has been indicated that it is within the kn...

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Abstract

The present invention provides a ceramic waveguide filter, comprising a plurality of ceramic waveguide resonators, every two adjacent ceramic waveguide resonators are connected and coupled to each other through a coupling bridge; at least one adjacent two ceramic waveguide resonators The coupling bridge between the waveguide resonators is provided with an inclined through hole penetrating through the upper and lower surfaces of the ceramic waveguide filter, so as to generate capacitive coupling between two adjacent ceramic waveguide resonators. More preferably, the present invention can adjust the amount of capacitive coupling by adjusting the width of the coupling bridge, the diameter of the slanted through hole and / or the slanted angle of the slanted through hole. Therefore, compared with the existing capacitive coupling methods such as deep blind holes or serpentine windows, the ceramic waveguide filter of the present invention has the advantages of simple structure, no need for assembly and welding, and easy processing and electroplating.

Description

technical field [0001] The invention relates to the technical field of filters in the field of wireless communication, in particular to a ceramic waveguide filter. Background technique [0002] A ceramic waveguide filter is a frequency selective device that uses a specific ceramic material as a carrier and consists of multiple ceramic waveguide resonators cascaded. With the rapid development of wireless communication technology, the market has increasingly stringent requirements on the performance and volume of communication base station equipment. Ceramic waveguide filters have broad application prospects in the future due to their compact size and relatively high Q value performance. Like other forms of filters, ceramic waveguide filters have more difficulties in realizing capacitive coupling than inductive coupling, such as complex structure and limited methods. Currently commonly used implementations mainly include: [0003] (1) Multi-ceramic module scheme: multiple c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 刘磊王斌华叶荣
Owner MOBI TECH SHENZHEN CO LTD
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