Ceramic filter and radio frequency device

A technology of ceramic filter and ceramic substrate, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of poor filtering performance, difficult control of the machining accuracy of deep blind holes, uneven coating thickness of metal coatings, etc. , to ensure the coating quality, maintain the filtering performance, and reduce the processing difficulty.

Pending Publication Date: 2020-08-14
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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Problems solved by technology

[0004] Based on the above, the object of the present invention is to provide a ceramic filter to solve the problem of difficult control of deep blind hole machining accuracy, uneven coating thickness of metal coating and filter performance of ceramic filters in the prior art. bad technical problem

Method used

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  • Ceramic filter and radio frequency device
  • Ceramic filter and radio frequency device
  • Ceramic filter and radio frequency device

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Embodiment Construction

[0023] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention relates to the technical field of communication component design, and discloses a ceramic filter and a radio frequency device. The ceramic filter comprises a ceramic substrate, a first blind hole and a second blind hole are formed in the centers of the upper surface and the lower surface of the ceramic substrate respectively, and the first blind hole and the second blind hole are thesame in size and are coaxially and symmetrically arranged; the surface of the ceramic substrate and the inner surfaces of the first blind holes and the second blind holes are coated with metal coatings. The radio frequency device comprises the ceramic filter. According to the ceramic filter provided by the invention, a traditional relatively high deep blind hole is split into the first blind holeand the second blind hole which are relatively short and are symmetrically arranged; the processing difficulty is reduced, the coating quality of the metal coating is ensured, and the filtering performance of the ceramic filter is maintained, so that the ceramic filter has a higher dielectric constant and lower dielectric loss. The radio frequency device provided by the invention adopts the ceramic filter, and has higher transceiving accuracy and smaller volume.

Description

technical field [0001] The invention relates to the technical field of communication component design, in particular to a ceramic filter and a radio frequency device. Background technique [0002] In the field of communication, radio frequency devices are used to send and receive information. The filter is the core device of the radio frequency device. Its main function is to pass specific frequency components in the transmitted and received signals and attenuate other frequency components as much as possible. [0003] In the environment of 5G communication requirements, MASSMiMo antenna arrays are widely used. In this antenna array, the filter and the antenna are integrated together. The filter is required to be light in weight and small in size. Ceramic filters came into being. Ceramic filters are made of ceramic Manufactured by coating the surface of the substrate with a metal coating. The processing of ceramic filters in the prior art is complex and requires high precis...

Claims

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Application Information

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IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 尹慧朱全於杨栋王宫
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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