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Ceramic waveguide filter

A technology of waveguide filter and ceramics, which is applied in the field of filters in the field of wireless communication, can solve the problems of difficulty and inconvenience in deep blind hole processing and electroplating, and achieve the effect of simple structure, easy electroplating, and easy processing

Active Publication Date: 2019-08-16
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 invention provides a ceramic waveguide filter comprising a plurality of ceramic waveguide resonators, wherein every two adjacent ceramic waveguide resonators are in communication and coupled to each other through a coupling bridge; at least one coupling bridge between two adjacent ceramic waveguide resonators is provided with an oblique through hole penetrating through the upper and lower surfaces of the ceramic waveguide filters such that capacitive coupling is achieved between the two adjacent ceramic waveguide resonators. More preferably, the amount of capacitive coupling can be adjusted by adjusting the width of the coupling bridge, the diameter of the oblique through hole, and / or the tilt angle of the oblique through hole. Therefore, compared with a conventional product where capacitive coupling is achieved by a deep blind hole or serpentine window, the ceramic waveguide filter of the invention is simple in structure, not required to be assembled and welded, easy to machine and electroplate.

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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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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